{"id":2042,"date":"2021-05-26T12:00:37","date_gmt":"2021-05-26T09:00:37","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=2042"},"modified":"2021-09-12T13:12:17","modified_gmt":"2021-09-12T10:12:17","slug":"online-seminar-u-haifa-topology-geometry-seminar-on-may-30-2021","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=2042","title":{"rendered":"Online seminar, U. Haifa Topology &#038; Geometry seminar on May 30, 2021"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A recording of the talk is available <a href=\"https:\/\/us02web.zoom.us\/rec\/share\/osHZQEsG59IJJXJyN2GqTuNG0lxAQlZbMFslApnOw81j6veELBewHw2jxyLE9Y7h.JhCarhwViBV3yXDD\">here<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-44270685-3860-4020-be83-e2e9076b00e6\"><strong><u>Topology &amp; Geometry Seminar<\/u><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-9304d8a4-9c9d-450e-8743-3bebc4cba2db\">Speaker: Yuri Sulyma, Brown University<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-105bf268-2b57-4c2d-aa5f-7c2df26e3463\">Topic:&nbsp;Floor, ceiling, factorials, and K-theory<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-56723314-5698-42ac-8693-38839bac5e3f\">Place:&nbsp;This is an online seminar. Please email David Blanc &#8220;blanc at math dot haifa dot ac dot il&#8221;&nbsp;for the Zoom ID and password.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-3d034e5f-2bb8-4e24-a67a-de35954cbcc2\">Time: 16:00<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-511eb1b1-bd11-4b8f-a43b-31f97bb68af2\">Date:&nbsp;Sunday, May 30,&nbsp;2021<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-ae6f5ab5-8de5-4762-84ba-e8fb2bfa406c\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><u>Abstract<\/u><\/strong><strong><u>:<\/u><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"block-f7318a39-422e-4ed2-9b43-4b635b70ccc2\">One interpretation of homotopy theory is that it is an enhanced version of arithmetic which &#8220;remembers&#8221; combinatorics and symmetry. I will demonstrate this philosophy concretely by explaining several situations where the floor and ceiling functions appear: Legendre&#8217;s formula and its q-analogue; representation theory of S^1; K-theory of truncated polynomial algebras; and equivariant homotopy theory. I will also give some observations and conjectures on how these examples are all related.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A recording of the talk is available here. Topology &amp; Geometry Seminar Speaker: Yuri Sulyma, Brown University Topic:&nbsp;Floor, ceiling, factorials, and K-theory Place:&nbsp;This is an online seminar. Please email David Blanc &#8220;blanc at math dot haifa dot ac dot il&#8221;&nbsp;for&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/mathematics.haifa.ac.il\/?p=2042\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,4],"tags":[],"class_list":["post-2042","post","type-post","status-publish","format-standard","hentry","category-gt-seminar","category-seminar"],"_links":{"self":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2042"}],"version-history":[{"count":2,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2042\/revisions"}],"predecessor-version":[{"id":2045,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2042\/revisions\/2045"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}