<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:news="http://www.google.com/schemas/sitemap-news/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"><url><loc>https://tube.mathe.social/about/instance/home</loc></url><url><loc>https://tube.mathe.social/videos/browse?scope=local</loc></url><url><loc>https://tube.mathe.social/w/1qvqBTKhRmTmkGRx1Phmhy</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/e89df39e-ce33-4833-acd3-1f8192ddd60c.jpg</video:thumbnail_loc><video:title>Ich liebe Polynomdivision ❤️ (in der Uni)</video:title><video:description>Ich liebe Polynomdivision ❤️ (in der Uni)</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/036bfbe4-1b0a-4871-bd10-e79098d51540/eaee06f1-2950-4a54-9ecf-f25236940956-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/1qvqBTKhRmTmkGRx1Phmhy</video:player_loc><video:duration>32</video:duration><video:rating>5</video:rating><video:view_count>47</video:view_count><video:publication_date>2025-11-27T17:40:23.420Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/tJUBTB3abDE3ktA43S979p</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/990714ac-29ec-43e2-8afd-9745e7b650f6.jpg</video:thumbnail_loc><video:title>01 Einleitung</video:title><video:description>01 Einleitung</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/e0a468de-2e39-476a-8a1d-142c4020831f/fdbc1fbf-6c7f-4433-80ee-e9408470ca22-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/tJUBTB3abDE3ktA43S979p</video:player_loc><video:duration>2554</video:duration><video:rating>0</video:rating><video:view_count>17</video:view_count><video:publication_date>2025-11-27T21:23:20.351Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/mb2EJkVSt7MeHJ6E3TFjpm</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/3ed7fe56-b780-48f0-990a-81d9183130bc.jpg</video:thumbnail_loc><video:title>02 Grundlegende Eigenschaften</video:title><video:description>02 Grundlegende Eigenschaften</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/a35d3d1a-ff8b-4030-b14c-293107b4855a/49805b9c-2846-4311-b6da-5a87ec57a12c-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/mb2EJkVSt7MeHJ6E3TFjpm</video:player_loc><video:duration>1915</video:duration><video:rating>0</video:rating><video:view_count>3</video:view_count><video:publication_date>2025-11-28T08:09:50.676Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/5q5zf1DfFw3rJqPc1ah76x</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/abfcbba7-9c04-413f-98e8-4e75c4b1f205.jpg</video:thumbnail_loc><video:title>03 Diedergruppe</video:title><video:description>03 Diedergruppe</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/23c13931-838e-4c1a-81c7-db0c2c60aa69/9394ce23-1fb2-422b-ae03-d193f9bb7624-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/5q5zf1DfFw3rJqPc1ah76x</video:player_loc><video:duration>2428</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-28T08:19:21.770Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/w8eECZzbRZXWe3jLbBzudW</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/6f5e9450-8110-47c9-a26b-d15e9fc62883.jpg</video:thumbnail_loc><video:title>04 Erzeuger und Relationen</video:title><video:description>04 Erzeuger und Relationen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/f3f4c9cb-c5f4-4950-82bf-473c8063d776/c53e0c50-9969-4546-963b-21c2f3ae2c1a-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/w8eECZzbRZXWe3jLbBzudW</video:player_loc><video:duration>2172</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-28T09:09:13.894Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/tFs7CcHWj2GgzbfqkUK22g</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/e1046ebe-766a-45af-bfc5-093cd2f0722e.jpg</video:thumbnail_loc><video:title>05 Symmetrische Gruppe, Zykel</video:title><video:description>05 Symmetrische Gruppe, Zykel</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/e028d824-43f4-4c61-926b-3d0944e74d45/3bb64b33-292f-4b84-b015-002b69c4e4f0-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/tFs7CcHWj2GgzbfqkUK22g</video:player_loc><video:duration>2710</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-28T08:52:39.349Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/1Sy8aV5h3gjyUXekBGm1vi</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/35de585a-2599-4ea8-b274-013061ae10c4.jpg</video:thumbnail_loc><video:title>06 Gruppenhomomorphismen</video:title><video:description>06 Gruppenhomomorphismen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/070efc42-d424-413e-b1b0-6b4caa994f63/3c0a0385-4c9d-45f0-afff-b30eb420e769-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/1Sy8aV5h3gjyUXekBGm1vi</video:player_loc><video:duration>2425</video:duration><video:rating>0</video:rating><video:view_count>3</video:view_count><video:publication_date>2025-11-28T09:01:16.944Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/rAy4LBRfaxa1qrkgP2Uw78</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/59fab769-2ea4-4857-852a-aed18e65d547.jpg</video:thumbnail_loc><video:title>07 Homomorphismen und Relationen</video:title><video:description>07 Homomorphismen und Relationen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/cf4783f3-3f4c-4929-92ca-7b1862ace76b/14443181-db27-4764-afa5-72a4914bb87e-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/rAy4LBRfaxa1qrkgP2Uw78</video:player_loc><video:duration>1419</video:duration><video:rating>0</video:rating><video:view_count>2</video:view_count><video:publication_date>2025-11-28T10:49:47.399Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/1aTRChBqGZjitsovps7EPy</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/c00df34a-3add-4062-ab1b-e7c8715ead13.jpg</video:thumbnail_loc><video:title>08 Gruppenwirkungen</video:title><video:description>08 Gruppenwirkungen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/0161a6ad-afcd-4939-9c00-24808215384e/0c813142-4a06-443e-b721-a1fcfe4831ad-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/1aTRChBqGZjitsovps7EPy</video:player_loc><video:duration>2083</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-28T13:22:29.216Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/cbbvAxwkRzswdVx6jzemGF</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/4bad7c52-ab0a-4881-9cb8-f637dedcdc10.jpg</video:thumbnail_loc><video:title>09 Untergruppen</video:title><video:description>09 Untergruppen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/5a8070ad-36b1-48ff-8d67-091245bd021f/86c3577d-6763-42e2-80bf-3963acc6a98b-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/cbbvAxwkRzswdVx6jzemGF</video:player_loc><video:duration>1729</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-28T13:28:34.949Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/xcMyYsqkAAx57Vh4CzJ5K4</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/0dad3c2d-b002-47f2-a579-13cb8c94c517.jpg</video:thumbnail_loc><video:title>10 SpezielleUntergruppen</video:title><video:description>10 SpezielleUntergruppen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/fcb09001-4787-42bb-bbaa-e020a232f631/dd8ad3d6-f166-435a-a224-3c5fb1b5b7b8-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/xcMyYsqkAAx57Vh4CzJ5K4</video:player_loc><video:duration>2693</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-28T13:51:19.669Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/mk35gBeKJr29RUEbwo9KB1</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/51cc47b8-4e4b-4ff1-baf2-636c73de46a4.jpg</video:thumbnail_loc><video:title>11 Zyklische Gruppen</video:title><video:description>11 Zyklische Gruppen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/a49f2ec7-ad3d-41a3-8bb1-4b4dd7fb69da/b1c511a1-028d-4bca-a0d3-b1c3e86b62d1-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/mk35gBeKJr29RUEbwo9KB1</video:player_loc><video:duration>3143</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-28T14:29:01.794Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/58FHMXqaLSjQGAcyNjCBHa</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/61c25a42-3cee-4c3e-9327-0699a8b1aa10.jpg</video:thumbnail_loc><video:title>Gehört Kombinatorik zur Wahrscheinlichkeitstheorie ?</video:title><video:description>Aus einer Vorlesung: Erzeugendenreihen sind eine Verbindung zwischen Kombinatorik und Wahrscheinlichkeitstheorie</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/21773d5c-89a8-453d-9d25-7cb73d12ce3f/c51f9205-2bf2-415b-9102-195b158c8ce1-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/58FHMXqaLSjQGAcyNjCBHa</video:player_loc><video:duration>48</video:duration><video:rating>0</video:rating><video:view_count>25</video:view_count><video:publication_date>2025-11-28T14:30:37.824Z</video:publication_date><video:tag>mathe</video:tag><video:tag>short</video:tag><video:tag>kombinatorik</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/2MaXJGvDz2SgCQgvZ2WL5v</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/a2872436-d644-4d7a-9529-9424238bde96.jpg</video:thumbnail_loc><video:title>12 Erzeugte Untergruppen und Untergruppenverband</video:title><video:description>12 Erzeugte Untergruppen und Untergruppenverband</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/0e67bf39-c114-40c1-b027-7f2e8fbf2c15/8254d39f-4633-47d2-b352-0b0c6e8738f7-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/2MaXJGvDz2SgCQgvZ2WL5v</video:player_loc><video:duration>2139</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-28T15:16:12.183Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/hrFdQDLVzqy5va3YmepUnJ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/7b279b3d-8fd8-4407-8434-cb868bce6385.jpg</video:thumbnail_loc><video:title>13 Quotienten</video:title><video:description>13 Quotienten</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/8527fbdc-59fd-4ba2-9fd5-1d4baa684224/51063623-529b-45a4-a40e-e4f487093ed4-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/hrFdQDLVzqy5va3YmepUnJ</video:player_loc><video:duration>4302</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-28T15:51:23.214Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/4jjsYa4KpbTUswpN87Wcrw</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/42bf8cd7-4ba0-4606-86c1-0999b752fa27.jpg</video:thumbnail_loc><video:title>14 Normalteiler</video:title><video:description>14 Normalteiler</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/1ada2eeb-89e3-4689-946f-b2e836f8db84/3e7bf135-07c9-4d82-962f-d0b2b4c76279-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/4jjsYa4KpbTUswpN87Wcrw</video:player_loc><video:duration>2606</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-29T10:26:42.597Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/dTHPvNTWDMaY5i2nuozHsF</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/d09ee112-384f-4816-94c0-2280525111b3.jpg</video:thumbnail_loc><video:title>15 Bemerkungen zu Quotienten</video:title><video:description>15 Bemerkungen zu Quotienten</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/68665e41-c6dc-48d3-ac2d-5caa6870bb97/30f07906-f216-4d27-9e4b-84d41d9b1863-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/dTHPvNTWDMaY5i2nuozHsF</video:player_loc><video:duration>785</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-29T10:33:05.287Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/feh6rQfE2oFAgr4nuFHd5P</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/fdaa0c1d-dd69-478f-9b08-a724df692e2b.jpg</video:thumbnail_loc><video:title>16 Satz von Lagrange</video:title><video:description>16 Satz von Lagrange</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/733a8749-1d5d-4f7b-a060-83ccbc454bdf/aaf75890-9a5d-482f-b17d-0d46d0d2ac23-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/feh6rQfE2oFAgr4nuFHd5P</video:player_loc><video:duration>1900</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-29T11:45:27.757Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/uvhck5pJX49nmTMgp6bgkw</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/5a7f5b82-8d65-41e2-aa0a-86918b124655.jpg</video:thumbnail_loc><video:title>17 Satz von Sylow</video:title><video:description>17 Satz von Sylow</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/e6d66eba-89bc-46fb-95b5-0b691233d708/24c1fa2b-d02e-4069-aa47-361051e0f80b-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/uvhck5pJX49nmTMgp6bgkw</video:player_loc><video:duration>2176</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-29T12:11:57.877Z</video:publication_date><video:tag>algebra</video:tag><video:tag>mathe</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/7bFjKVRhNUFCQGinNrperR</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/9b125693-f1e9-4621-b340-27ca097e7b04.jpg</video:thumbnail_loc><video:title>18 Isomorphiesätze</video:title><video:description>18 Isomorphiesätze</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/321480e9-d8bf-4024-bc2e-081b56b3d957/1fed8619-db06-4946-b9d0-a19df9f24694-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/7bFjKVRhNUFCQGinNrperR</video:player_loc><video:duration>2250</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-29T12:59:15.748Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/1RbAkaJSXfGr6jjtTx4CLC</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/fb3ebbce-7b9f-40fe-bb1d-97449df303d2.jpg</video:thumbnail_loc><video:title>19 Isomorphiesätze 2</video:title><video:description>19 Isomorphiesätze 2</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/06ddf8e3-9ffe-4cf5-9f55-9d06a5893334/0efd96c0-8a12-43c9-a486-54318ae0f8ed-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/1RbAkaJSXfGr6jjtTx4CLC</video:player_loc><video:duration>1374</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-29T13:16:06.229Z</video:publication_date><video:tag>Mathe</video:tag><video:tag>Algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/wffnooPi5kh5wFJPM9LfMY</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/4f94182c-32d7-45a0-b4d9-ef11f4810c69.jpg</video:thumbnail_loc><video:title>20 Ausblick auf Gruppentheorie</video:title><video:description>20 Ausblick auf Gruppentheorie</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/f4ef6d78-9ad3-4c02-b3e5-7e571a8ae8a2/f8659557-d4d4-427d-82d6-3b9e5ae77b7d-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/wffnooPi5kh5wFJPM9LfMY</video:player_loc><video:duration>1276</video:duration><video:rating>5</video:rating><video:view_count>2</video:view_count><video:publication_date>2025-11-29T15:03:26.814Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/wxsKRATaqhjFfzHaEhkeAJ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/4ea45296-d143-4887-96ae-1b9ef6e5be5e.jpg</video:thumbnail_loc><video:title>21 Ringbasics</video:title><video:description>21 Ringbasics</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/f756b4a9-de9b-4bef-a544-e878b5f0aa2a/f5c331b2-9f2c-43bc-9eaa-85d9f45c4099-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/wxsKRATaqhjFfzHaEhkeAJ</video:player_loc><video:duration>1542</video:duration><video:rating>0</video:rating><video:view_count>5</video:view_count><video:publication_date>2025-11-29T15:16:01.257Z</video:publication_date><video:tag>algebra</video:tag><video:tag>mathe</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/epWxX2zUUPMzFWrAouRRsg</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/b3cab51d-9e03-48c7-a6f3-0e700ae8761f.jpg</video:thumbnail_loc><video:title>22 Nullteiler und Co</video:title><video:description>22 Nullteiler und Co</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/6c9e8706-4ae5-4a42-b8c3-fe3afa4557ff/8f6ae5ec-56e5-49c3-ad37-9f2b76028ada-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/epWxX2zUUPMzFWrAouRRsg</video:player_loc><video:duration>2016</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-29T16:04:42.587Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/bks2x5Gxri4dG4v1XcP3hs</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/b4e3c8af-3a09-481f-9c96-3b969ac5f1d4.jpg</video:thumbnail_loc><video:title>23 Polynome</video:title><video:description>23 Polynome</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/53b28ec0-1603-42e8-a43f-8bff4f63dbea/4d15ddb6-b6ea-4052-ac20-006ad3f4b736-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/bks2x5Gxri4dG4v1XcP3hs</video:player_loc><video:duration>1852</video:duration><video:rating>0</video:rating><video:view_count>2</video:view_count><video:publication_date>2025-11-29T16:20:57.003Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/e8b7FXHvXGD8DxBB7TJgV3</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/2748ee29-ffeb-4b32-81de-a76c90810723.jpg</video:thumbnail_loc><video:title>24 Homomorphismen und Quotienten von Ringen</video:title><video:description>24 Homomorphismen und Quotienten von Ringen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/6a473e25-a1d4-476e-b5fa-d1ce1db026e0/fc901b25-f26b-4a96-af6d-213380275fb5-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/e8b7FXHvXGD8DxBB7TJgV3</video:player_loc><video:duration>2388</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-29T16:49:06.556Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/8JYLcCvVyHaKyCevai57oo</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/716e5016-4af4-4f0c-9b0c-35ead733783d.jpg</video:thumbnail_loc><video:title>25 Isomorphiesätze für Ringe</video:title><video:description>25 Isomorphiesätze für Ringe</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/3eb03098-e91a-4973-849e-38e74609c2fa/861e55f0-f4dc-42f3-8055-462cc76c89d7-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/8JYLcCvVyHaKyCevai57oo</video:player_loc><video:duration>1453</video:duration><video:rating>0</video:rating><video:view_count>3</video:view_count><video:publication_date>2025-11-29T21:52:02.930Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/biuMCqdDCoFpjRgoJq6WvJ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/344c3183-8845-4c98-876f-1506d41cb355.jpg</video:thumbnail_loc><video:title>26 Mehr über Ideale</video:title><video:description>26 Mehr über Ideale</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/536cc567-e4b4-4c3e-bf09-935066c154dc/0d6096a8-ab6f-4d13-996c-a89184d24092-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/biuMCqdDCoFpjRgoJq6WvJ</video:player_loc><video:duration>2356</video:duration><video:rating>0</video:rating><video:view_count>2</video:view_count><video:publication_date>2025-11-29T22:11:19.368Z</video:publication_date><video:tag>Algebra</video:tag><video:tag>Mathe</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/9RcTMLfh8SarsH1wyN4XHK</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/57ee807f-5cd4-4498-bc61-02db7c729697.jpg</video:thumbnail_loc><video:title>27 spezielle Ideale und Ringe</video:title><video:description>27 spezielle Ideale und Ringe</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/47a7e21e-8be4-4994-b952-ff26fbfb2c09/6a9f44b0-6512-4d46-84c5-2b5fa63fb830-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/9RcTMLfh8SarsH1wyN4XHK</video:player_loc><video:duration>2905</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-30T09:37:01.349Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/6EsDtYe4gvuZc3Sw7c15om</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/a13889ee-987d-4788-9f15-e7e5da859fe2.jpg</video:thumbnail_loc><video:title>28 Teilbarkeit in Ringen</video:title><video:description>28 Teilbarkeit in Ringen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/2ddc60bd-8975-4961-baeb-cf667fed8790/f37fd29a-23b7-496e-91e3-4139a5d8bfc1-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/6EsDtYe4gvuZc3Sw7c15om</video:player_loc><video:duration>2350</video:duration><video:rating>0</video:rating><video:view_count>3</video:view_count><video:publication_date>2025-11-30T10:39:08.303Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/hUPXZ3A3PuLFg8CkeY9Pqf</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/88768cc4-c290-4a86-ab4f-21f91b0b3027.jpg</video:thumbnail_loc><video:title>29 Irreduzible Polynome</video:title><video:description>29 Irreduzible Polynome</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/88f27448-1826-41bd-a74a-3c660100aeba/ddffe36e-8efe-4f6a-92e9-ec2ec6b97650-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/hUPXZ3A3PuLFg8CkeY9Pqf</video:player_loc><video:duration>2679</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-30T11:20:03.177Z</video:publication_date><video:tag>algebra</video:tag><video:tag>mathe</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/mffXSukASaAz3unRRWEAX4</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/19f5a73f-f3ed-4433-9140-f79eacc9a2e8.jpg</video:thumbnail_loc><video:title>Tafelwischen aber richtig</video:title><video:description>Mathematiker*innen legen sehr viel Wert auf eine gut gewischte Tafel. Deshalb: nass abwischen und dann abziehen!
Hält man dabei den Schwamm unter den Abzieher, macht man keine große Pfütze unter der Tafel. So wird's gemacht.</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/a3f4684d-6cd0-45be-a9cf-7802a3ead4f1/b3784734-c32f-469e-beb2-b466b4a7dab3-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/mffXSukASaAz3unRRWEAX4</video:player_loc><video:duration>45</video:duration><video:rating>0</video:rating><video:view_count>145</video:view_count><video:publication_date>2025-11-30T11:23:10.288Z</video:publication_date><video:tag>mathe</video:tag><video:tag>short</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/qemwUkr8v72Y4jWppSiNwZ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/65ec47e0-01e0-4937-abe4-5871cd18d2f0.jpg</video:thumbnail_loc><video:title>30 Körper sind auch nur Ringe</video:title><video:description>30 Körper sind auch nur Ringe</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/c438a690-1e64-4ff9-a129-fd384ce08d65/2ccf9ba3-d6ea-4f0c-adef-f466b2d97c32-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/qemwUkr8v72Y4jWppSiNwZ</video:player_loc><video:duration>3849</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-30T12:23:51.481Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/2fcmrc4SpmToCRZ3YSBuBW</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/fa63e9d2-19d8-4b25-8439-a96fa22cd932.jpg</video:thumbnail_loc><video:title>31 Adjunktion von Wurzeln</video:title><video:description>31 Adjunktion von Wurzeln</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/0a148c2c-7348-4c1c-a820-5e63fd7c1fac/b62f78e1-741e-4345-bda9-af273c3a799d-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/2fcmrc4SpmToCRZ3YSBuBW</video:player_loc><video:duration>2759</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-30T12:46:04.940Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/fhPs1Jp9R7ToQNFytQh9Yj</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/a45204f3-b514-4298-b39a-f2b05843ee8b.jpg</video:thumbnail_loc><video:title>32 Minimalpolynom</video:title><video:description>32 Minimalpolynom</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/73b9152d-f8b5-402e-8a30-07ee8e4652c2/17434f8c-b69e-4260-afa8-9843ad1cf8bd-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/fhPs1Jp9R7ToQNFytQh9Yj</video:player_loc><video:duration>1799</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-30T13:12:03.724Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/vwVTd82FuBBCcY6RLQGBVs</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/197407fa-a386-4b05-bfda-02543baf6e52.jpg</video:thumbnail_loc><video:title>33 Quadratische Erweiterungen</video:title><video:description>33 Quadratische Erweiterungen</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/ef2a8a6f-9358-4e71-9c90-71e566872d88/a571b56c-690c-4951-b69d-87375f45273d-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/vwVTd82FuBBCcY6RLQGBVs</video:player_loc><video:duration>832</video:duration><video:rating>0</video:rating><video:view_count>2</video:view_count><video:publication_date>2025-11-30T13:23:50.118Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/nex3sZEE9JBzMSz7D9Vdqw</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/e3fb19cf-8642-4b55-a02b-a23534993856.jpg</video:thumbnail_loc><video:title>34 Gradformel</video:title><video:description>34 Gradformel</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/abf3b624-81f4-4efa-b85b-f2c547541626/eafb1674-9892-4e2b-89bc-53818ab23b12-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/nex3sZEE9JBzMSz7D9Vdqw</video:player_loc><video:duration>1547</video:duration><video:rating>0</video:rating><video:view_count>0</video:view_count><video:publication_date>2025-11-30T14:04:35.895Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/rDEUsvfLLJUKAPcVfMJQGN</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/92730ddb-355d-4d09-b7c0-41129a1314bf.jpg</video:thumbnail_loc><video:title>35 Algebraisch VS endlich VS endlich erzeugt</video:title><video:description>35 Algebraisch VS endlich VS endlich erzeugt</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/cfb6f631-c510-457f-92fb-6b56da2bb2de/83cb79f0-bfb0-4df4-b003-c38be0f1c8c2-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/rDEUsvfLLJUKAPcVfMJQGN</video:player_loc><video:duration>2102</video:duration><video:rating>0</video:rating><video:view_count>2</video:view_count><video:publication_date>2025-11-30T14:22:02.586Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/6eaDK7iTSUuxgvuZM4rC6c</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/2d422305-bcdb-48cf-a305-52edb1bcef3d.jpg</video:thumbnail_loc><video:title>36 Zirkel und Lineal</video:title><video:description>36 Zirkel und Lineal</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/2a544f4e-9dd0-4b61-b293-c893a2f645b5/af22c12f-dd0c-4053-85db-204281e55961-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/6eaDK7iTSUuxgvuZM4rC6c</video:player_loc><video:duration>3397</video:duration><video:rating>0</video:rating><video:view_count>3</video:view_count><video:publication_date>2025-11-30T16:43:41.204Z</video:publication_date><video:tag>algebra</video:tag><video:tag>mathe</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/2a3pJhDmStKurDtYjBn52f</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/96e218bc-89d0-4390-90c2-ac440d33a655.jpg</video:thumbnail_loc><video:title>37 Zerfällungskörper und algebraischer Abschluss</video:title><video:description>37 Zerfällungskörper und algebraischer Abschluss</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/095c5138-3b41-48b7-8979-b66f7f92c910/a13e2d43-2c24-49cb-899d-82623db2f986-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/2a3pJhDmStKurDtYjBn52f</video:player_loc><video:duration>2994</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-30T17:08:04.817Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/auYY4EJroNZ94zYibQY8Vf</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/fb209b2e-3d91-4106-b012-02f6955245ec.jpg</video:thumbnail_loc><video:title>38 Endliche Körper</video:title><video:description>38 Endliche Körper</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/4cee2e2f-f365-4510-bcb8-fb40e958994c/97cfa21b-73e1-4d81-aa62-24f710971505-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/auYY4EJroNZ94zYibQY8Vf</video:player_loc><video:duration>2218</video:duration><video:rating>0</video:rating><video:view_count>1</video:view_count><video:publication_date>2025-11-30T17:42:08.570Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/rp4RdMXDzMZWdNKtceKwiZ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/aecde299-7673-4740-88c4-56de0fb752c8.jpg</video:thumbnail_loc><video:title>39 Hauptsatz der Galoistheorie</video:title><video:description>39 Hauptsatz der Galoistheorie</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/cdacf1ec-55ba-49d0-87d3-9fafb7b4acf3/bf797e0e-ef0b-4148-8c83-96ccdb051130-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/rp4RdMXDzMZWdNKtceKwiZ</video:player_loc><video:duration>2385</video:duration><video:rating>0</video:rating><video:view_count>4</video:view_count><video:publication_date>2025-11-30T20:15:22.229Z</video:publication_date><video:tag>mathe</video:tag><video:tag>algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/vl_algebra/videos">Vorlesung Algebra</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/a7CU6kpnEFfTEqoGvf5RaQ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/d5affae1-8ced-475f-9ab1-5385be7515cd.jpg</video:thumbnail_loc><video:title>Fundamentalsatz über Polynome</video:title><video:description>Mein hot take zum sogenannten Fundamentalsatz der Algebra: Er sollte Fundamentalsatz über Polynome heißen.</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/49cf7329-0bfe-40d2-a70c-6476a7f799be/0d9b292d-cd73-44d5-98b0-bc83d3be838f-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/a7CU6kpnEFfTEqoGvf5RaQ</video:player_loc><video:duration>68</video:duration><video:rating>5</video:rating><video:view_count>72</video:view_count><video:publication_date>2025-12-12T13:15:08.507Z</video:publication_date><video:tag>#mathe</video:tag><video:tag>#algebra</video:tag><video:tag>#polynom</video:tag><video:tag>#short</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/3WVE1FtSfvrMCFGX7VRJcG</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/99911f49-6757-4af9-848f-10145b033d5d.jpg</video:thumbnail_loc><video:title>Eine kurze Geschichte der Null</video:title><video:description>In diesem Vortrag beleuchte ich einige Aspekte der Geschichte der Zahl Null und ihres immensen Nutzens für die Mathematik.

Der Vortrag fand 2021 im Rahmen einer Ringvorlesung "Geschichte der Mathematik" statt und wurde 2025 als Video aufgearbeitet.</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/17dd81d7-d41d-4751-8c5c-70b4e794f906/44be8e7f-ef75-49f5-9bc4-98efbf8942dc-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/3WVE1FtSfvrMCFGX7VRJcG</video:player_loc><video:duration>3366</video:duration><video:rating>0</video:rating><video:view_count>56</video:view_count><video:publication_date>2025-12-19T14:50:04.973Z</video:publication_date><video:tag>mathe</video:tag><video:tag>vorlesung</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/8DdKxVvx3B13VuzDHHopco</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/a591af41-eaea-47fe-a451-d5b0248c79d1.jpg</video:thumbnail_loc><video:title>EIG057 Tier List: Notation (mit Mathias)</video:title><video:description>Zum Jahresabschluss 2025 gönnen wir uns noch ein wenig Spaß: Mathias und ich sortieren gängige mathematische Notation in einer Tier-List.

Dieses Video ist eine Podcast-Aufnahme für den Eigenraum. Die Episodenseite ist hier: 
https://eigenpod.de/eig057-tier-list-notation-mit-mathias/</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/3de2591d-de43-45a4-ab00-499610015630/9b78bf5d-523b-40c6-8d71-522cb8519227-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/8DdKxVvx3B13VuzDHHopco</video:player_loc><video:duration>7482</video:duration><video:rating>0</video:rating><video:view_count>123</video:view_count><video:publication_date>2025-12-28T19:31:33.567Z</video:publication_date><video:tag>mathe</video:tag><video:tag>notation</video:tag><video:tag>podcast</video:tag><video:tag>eigenraum</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/7BrGpsysMhj6qTsCPgpJgV</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/79fad730-c7b1-4ab1-a169-81551534e680.jpg</video:thumbnail_loc><video:title>Farbkreide</video:title><video:description>Benutzen wir zu wenig Farbkreide?</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/3589b334-8027-4146-bdd9-cc5a63db7a6b/a6826a5e-1862-4a2a-9de6-6aac46683257-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/7BrGpsysMhj6qTsCPgpJgV</video:player_loc><video:duration>28</video:duration><video:rating>5</video:rating><video:view_count>78</video:view_count><video:publication_date>2026-01-05T14:48:26.012Z</video:publication_date><video:tag>mathe</video:tag><video:tag>kreide</video:tag><video:tag>short</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/41PHTdpGDHiG414xYW1NzB</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/55bc14c6-c9d9-4635-8321-9db4536bcb0b.jpg</video:thumbnail_loc><video:title>Kolakoskis Folge</video:title><video:description>Kolakoskis Folge erzeugt sich mit einem einfachen Algorithmus selbst. Sie ist die zweite Folge in der OEIS: 
https://oeis.org/A000002</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/1868d366-6f52-4471-9844-1076fadb27b5/3c50ab3f-bc05-438b-8c53-f8767d3bef11-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/41PHTdpGDHiG414xYW1NzB</video:player_loc><video:duration>117</video:duration><video:rating>5</video:rating><video:view_count>36</video:view_count><video:publication_date>2026-01-14T14:08:44.422Z</video:publication_date><video:tag>short</video:tag><video:tag>mathe</video:tag><video:tag>oeis</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/rtX66ED3HgMLdGW9k3Fvoa</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/d1ffa9b6-617d-45fd-a517-bf2958cd75ff.jpg</video:thumbnail_loc><video:title>Kolakoski-Folge und Golomb-Folge am Lightboard</video:title><video:description>Nochmal etwas zu selbst-erzeugenden Folgen, diesmal am Lightboard.</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/ce5b7f56-3156-49de-9293-5c81a943c431/24602cf2-8998-41fd-9b1a-8e891fd7b202-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/rtX66ED3HgMLdGW9k3Fvoa</video:player_loc><video:duration>210</video:duration><video:rating>5</video:rating><video:view_count>48</video:view_count><video:publication_date>2026-01-16T11:57:13.136Z</video:publication_date><video:tag>short</video:tag><video:tag>mathe</video:tag><video:tag>lightboard</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/6S9CCiTAauwuYtSvCpbF97</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/04d3cbee-970a-47c0-af4c-398b767f7af9.jpg</video:thumbnail_loc><video:title>Hypno Star 😵‍💫</video:title><video:description>It's a real object with no video editing.</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/2f7e337d-edb4-42a9-aa9c-43843b6a2c12/85efbea9-f594-47ee-8f4a-e8315cd4afec-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/6S9CCiTAauwuYtSvCpbF97</video:player_loc><video:duration>10</video:duration><video:rating>5</video:rating><video:view_count>19</video:view_count><video:publication_date>2026-02-15T18:00:48.192Z</video:publication_date><video:tag>short</video:tag><video:tag>weird</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/58nz7Z9eAYbct3kjxpkDQ5</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/2040818b-ce92-45e6-81d9-55a882970602.jpg</video:thumbnail_loc><video:title>Vorlesung Algebra 2, no 18: n-Eck</video:title><video:description>(veröffentlicht auf dem Fediday 2)</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/216c0dfd-feb1-4e78-9246-eca08d67a0e0/3b7c1005-f0a0-4d71-affe-5c2aad8078e1-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/58nz7Z9eAYbct3kjxpkDQ5</video:player_loc><video:duration>5095</video:duration><video:rating>0</video:rating><video:view_count>16</video:view_count><video:publication_date>2026-03-30T10:12:54.642Z</video:publication_date><video:tag>mathe</video:tag><video:tag>vorlesung</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/nLUs6cFv8QgBm4qRa56jLk</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/936cd7e1-5745-4307-9517-ec0087134159.jpg</video:thumbnail_loc><video:title>The trefoil is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).
</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/b054f60a-109b-46bb-b12b-19e012a30d7b/434019a3-1b3f-4f65-ae04-15707d10eaba-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/nLUs6cFv8QgBm4qRa56jLk</video:player_loc><video:duration>10</video:duration><video:rating>5</video:rating><video:view_count>10</video:view_count><video:publication_date>2026-04-17T14:08:03.441Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/97ktiDKePGTeDe8mRnWFFZ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/7c97b69c-9d55-4761-aa20-115163c7bf03.jpg</video:thumbnail_loc><video:title>The figure-eight knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/41ab9239-2906-4f6f-a1bd-12a8b830a56b/8fb5f370-d44e-475e-9114-e4e7bc09ffff-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/97ktiDKePGTeDe8mRnWFFZ</video:player_loc><video:duration>10</video:duration><video:rating>5</video:rating><video:view_count>2</video:view_count><video:publication_date>2026-04-17T14:10:55.827Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/8vTjeg8HmSN8ZV4rrvNDec</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/db903312-5d70-4a0a-aa90-3314f876af15.jpg</video:thumbnail_loc><video:title>The (5,2)-torus knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/3cdc29db-5193-477e-b08a-552ef2cbfa91/32e4f298-5f38-408c-92ce-66eda72332f4-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/8vTjeg8HmSN8ZV4rrvNDec</video:player_loc><video:duration>12</video:duration><video:rating>0</video:rating><video:view_count>31</video:view_count><video:publication_date>2026-04-17T14:12:54.478Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/s7UyTAbjN7nLLJut81i1Jk</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/7351112a-3535-4589-a839-806231c18eb8.jpg</video:thumbnail_loc><video:title>The three-twist knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/d38476a0-2975-4c17-8da4-920bcb16465f/6543fe93-85fe-421c-b77a-7d4dce27c662-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/s7UyTAbjN7nLLJut81i1Jk</video:player_loc><video:duration>13</video:duration><video:rating>5</video:rating><video:view_count>42</video:view_count><video:publication_date>2026-04-17T14:14:23.398Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/3D3BRrnQtaHCXBtJhmUyKN</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/dbf8c361-ce21-428e-acc2-048d4c372874.jpg</video:thumbnail_loc><video:title>The stevedore knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/155e6909-56a3-4b4a-8310-848200a740cc/07be5314-db1b-4ffd-a166-50736fd252cc-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/3D3BRrnQtaHCXBtJhmUyKN</video:player_loc><video:duration>15</video:duration><video:rating>0</video:rating><video:view_count>22</video:view_count><video:publication_date>2026-04-17T14:18:03.877Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/qZLFeAdAXdweJLyQU8XZMW</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/0c82f834-426f-45eb-a07d-5f3d7d46f52d.jpg</video:thumbnail_loc><video:title>The 6_2 knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/ca6c416d-3388-4bec-ae84-ae8b1ae925f4/6147a207-370f-435d-b1fb-b717edd346c2-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/qZLFeAdAXdweJLyQU8XZMW</video:player_loc><video:duration>14</video:duration><video:rating>0</video:rating><video:view_count>20</video:view_count><video:publication_date>2026-04-17T14:19:12.126Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/a596WfWjY5DdYJYppGfpWo</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/363b1127-4f41-4ff2-972e-ad4f96c96f07.jpg</video:thumbnail_loc><video:title>The  6_3 knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/4976375c-edd0-4c2c-a722-cea701e8d25e/b854afb6-cdaf-4129-98f6-4d2508e74695-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/a596WfWjY5DdYJYppGfpWo</video:player_loc><video:duration>13</video:duration><video:rating>0</video:rating><video:view_count>19</video:view_count><video:publication_date>2026-04-17T14:20:17.010Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:tag>knotholder</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/pguuAPNtkhdVsM7qrETHej</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/680291b0-f9fe-4dc9-81c9-79a5498ed806.jpg</video:thumbnail_loc><video:title>The connected sum of two trefoil knots is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/bc6be7bd-5ad7-4451-9444-8be5cd539ac0/c125db1c-15f9-416d-939c-d2ea24d468db-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/pguuAPNtkhdVsM7qrETHej</video:player_loc><video:duration>18</video:duration><video:rating>0</video:rating><video:view_count>30</video:view_count><video:publication_date>2026-04-17T14:21:14.719Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/2Sed7uf5XtQ786sNUUmx8A</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/5a1665d5-0827-4e1a-af6e-14da66d8f966.jpg</video:thumbnail_loc><video:title>The square knot is trivial!</video:title><video:description>A knotholder trick as introduced in the paper:

**All knots are trivial: a "proof" by sleight of hand**, by Raphael Appenzeller and José Pedro Quintanilha, https://arxiv.org/abs/2604.13799

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/0f1c77a6-b5dd-4a6f-8dd9-9c78c9694374/f6743398-e11c-44d5-939c-89fbe176bc88-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/2Sed7uf5XtQ786sNUUmx8A</video:player_loc><video:duration>13</video:duration><video:rating>0</video:rating><video:view_count>38</video:view_count><video:publication_date>2026-04-17T14:22:13.844Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:tag>knotholder</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/3GizuQwAQQgQgd6q4UNVqs</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/6c38dcab-ba8d-4e48-bbfe-ecd712a68552.jpg</video:thumbnail_loc><video:title>Agentic AI vs Uni - Tag der Lehre 2026</video:title><video:description>Vortrag "Agentic AI vs. Uni" beim Tag der Lehre 2026 an der OvGU Magdeburg.
Slides zum Download: https://thomas-kahle.de/assets/pdf/tag-der-lehre-2026.pdf</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/15d2dc54-5faa-4809-81df-9aa7d658adce/694ca663-84d8-4c91-ad64-a56c27a24a7d-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/3GizuQwAQQgQgd6q4UNVqs</video:player_loc><video:duration>2896</video:duration><video:rating>5</video:rating><video:view_count>90</video:view_count><video:publication_date>2026-06-10T18:34:29.718Z</video:publication_date><video:tag>#ai</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/tomkalei_main/videos">tomkalei_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/pmMbniHYn4K8d8iRGC1Db8</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/a0f422f7-c66f-4a2c-a8bb-335f3820676c.jpg</video:thumbnail_loc><video:title>The Hopf link is trivial?</video:title><video:description>Are all links trivial, if you allow multiple magicians?

All knots are trivial: a "proof" by sleight of hand, by Raphael Appenzeller and José Pedro Quintanilha, [arxiv:2604.13799](https://arxiv.org/abs/2604.13799).

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).
</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/bd28e82f-50a0-4fa3-8f50-72f391ef677f/f777d08c-434c-4629-8d94-19e7cbc09f12-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/pmMbniHYn4K8d8iRGC1Db8</video:player_loc><video:duration>8</video:duration><video:rating>0</video:rating><video:view_count>14</video:view_count><video:publication_date>2026-06-11T17:36:14.755Z</video:publication_date><video:tag>math</video:tag><video:tag>knot</video:tag><video:tag>link</video:tag><video:tag>magic</video:tag><video:tag>science</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/5uNZU27W8LNhj4ZTGn3z6R</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/268f4e1a-7859-4448-b8a2-9f25f6a94842.jpg</video:thumbnail_loc><video:title>The Whitehead link is trivial?</video:title><video:description>Are all links trivial, if you allow multiple magicians?

All knots are trivial: a "proof" by sleight of hand, by Raphael Appenzeller and José Pedro Quintanilha, [arxiv:2604.13799](https://arxiv.org/abs/2604.13799).

Filmed at the Heidelberg Experimental Geometry Lab [HEGL](https://hegl.mathi.uni-heidelberg.de/).</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/246a5808-bee5-4eee-8027-9df19be956d7/3be891a1-ae95-471e-9d36-9f299f5f2006-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/5uNZU27W8LNhj4ZTGn3z6R</video:player_loc><video:duration>19</video:duration><video:rating>0</video:rating><video:view_count>10</video:view_count><video:publication_date>2026-06-12T13:03:58.733Z</video:publication_date><video:tag>math</video:tag><video:tag>knots</video:tag><video:tag>magic</video:tag><video:tag>knotholder</video:tag><video:tag>link</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/ra_main/videos">ra_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/rzxDtYrazfPL6jrpKvLjZZ</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/172972a9-8e8d-4f65-901c-c0a3c2b1113f.jpg</video:thumbnail_loc><video:title>Interviews with OSCAR developers</video:title><video:description>OSCAR is an innovative Open Source Computer Algebra Research system that powers cutting-edge computations in algebra, geometry, and number theory. Written in Julia, OSCAR brings together powerful tools from diverse mathematical areas to tackle even the most complex computations.

https://www.oscar-system.org/</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/cf23837b-6c39-4b62-a41d-a148cae7277b/cdfbb7d8-aa5f-41b1-926c-dacab11e122e-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/rzxDtYrazfPL6jrpKvLjZZ</video:player_loc><video:duration>384</video:duration><video:rating>5</video:rating><video:view_count>75</video:view_count><video:publication_date>2026-06-30T12:27:07.646Z</video:publication_date><video:tag>computer algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/oscar_main/videos">oscar_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/nfRPyed3BGt8EX1jEysjhx</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/5b99126b-e710-4259-bc1b-57ae5cec4350.jpg</video:thumbnail_loc><video:title>Meeting the real OSCAR: Ehrhart theory</video:title><video:description>The real OSCAR tells you how to make computations in Ehrhart theory.

OSCAR is an innovative Open Source Computer Algebra Research system that powers cutting-edge computations in algebra, geometry, and number theory. Written in Julia, OSCAR brings together powerful tools from diverse mathematical areas to tackle even the most complex computations.

https://www.oscar-system.org/</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/ac2306fa-7983-471f-a5e9-fa4b2750e797/1be08f53-2f5a-4694-ada4-ea5ab88bbb7c-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/nfRPyed3BGt8EX1jEysjhx</video:player_loc><video:duration>40</video:duration><video:rating>5</video:rating><video:view_count>64</video:view_count><video:publication_date>2026-06-30T12:27:09.390Z</video:publication_date><video:tag>computer algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/oscar_main/videos">oscar_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/w/tGevrRaSgJadGJtCUkJ8LX</loc><video:video><video:thumbnail_loc>https://tube.mathe.social/lazy-static/thumbnails/103bf124-3af9-422b-9af4-35c75c857ffc.jpg</video:thumbnail_loc><video:title>Meeting the real OSCAR: Galois theory</video:title><video:description>The real OSCAR tells you about computations in Galois theory.

OSCAR is an innovative Open Source Computer Algebra Research system that powers cutting-edge computations in algebra, geometry, and number theory. Written in Julia, OSCAR brings together powerful tools from diverse mathematical areas to tackle even the most complex computations.

https://www.oscar-system.org/</video:description><video:content_loc>https://tube.mathe.social/media/streaming-playlists/hls/e044d1ab-a7fb-4ed9-bbbb-f6e2c2911beb/720804dd-05a7-4b9b-b80e-0a35af35e8c7-master.m3u8</video:content_loc><video:player_loc>https://tube.mathe.social/videos/embed/tGevrRaSgJadGJtCUkJ8LX</video:player_loc><video:duration>36</video:duration><video:rating>5</video:rating><video:view_count>73</video:view_count><video:publication_date>2026-06-30T12:30:17.766Z</video:publication_date><video:tag>computer algebra</video:tag><video:family_friendly>YES</video:family_friendly><video:uploader info="https://tube.mathe.social/c/oscar_main/videos">oscar_main</video:uploader><video:live>NO</video:live></video:video></url><url><loc>https://tube.mathe.social/c/tomkalei_main/videos</loc></url><url><loc>https://tube.mathe.social/c/vl_algebra/videos</loc></url><url><loc>https://tube.mathe.social/c/ra_main/videos</loc></url><url><loc>https://tube.mathe.social/c/oscar_main/videos</loc></url><url><loc>https://tube.mathe.social/a/tomkalei/video-channels</loc></url><url><loc>https://tube.mathe.social/a/ra/video-channels</loc></url><url><loc>https://tube.mathe.social/a/oscar/video-channels</loc></url></urlset>