{"id":2192,"date":"2021-11-04T12:16:43","date_gmt":"2021-11-04T10:16:43","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=2192"},"modified":"2021-11-18T13:33:46","modified_gmt":"2021-11-18T11:33:46","slug":"u-haifa-topology-geometry-seminar-sunday-nov-7-2021-speaker-speaker-andrea-gagna-czech-academy-of-sciences-%e2%88%9e-2-categories-and-wher-to-find-them","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=2192","title":{"rendered":"U. Haifa Topology &#038; Geometry seminar: Sunday, NOV 7, 2021. Speaker: Andrea Gagna (Czech Academy of Sciences). &#8220;(\u221e, 2)-categories and wher to find them&#8221;"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Time: <\/strong>Sunday, Nov, 7 at 17:00 (Israel Time)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Location: <\/strong>On Zoom<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/us02web.zoom.us\/rec\/share\/58OVaq8ckzWZflq-rW1yThWtxr3XgOwYqF7VHk25SRGMOrJkdKFFQznre3OHdRX6.gG2nOZHpg4sDYSvP\">https:\/\/us02web.zoom.us\/rec\/share\/58OVaq8ckzWZflq-rW1yThWtxr3XgOwYqF7VHk25SRGMOrJkdKFFQznre3OHdRX6.gG2nOZHpg4sDYSvP<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Speaker: <\/strong>Andrea Gagna (Czech Academy of Sciences)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Title:&nbsp;<\/strong> &#8220;(\u221e, 2)-categories and where to find them&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong> In this talk I will&nbsp;briefly review some of the reasons why&nbsp;\u221e-categories were introduced<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">in the first place. Then I will present you with some recent results in (mostly algebraic)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">geometry, which need a formalism of (\u221e, 2)-categories in order to be stated and proved.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Finally, I will show what has been done so far to fill this technical gap in the literature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The talk is going to be pretty informal and I will try to prioritize ideas over formally correct<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">statements and technical definitions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ZOOM COORDINATES:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/us02web.zoom.us\/j\/84987591026?pwd=aTJWcFlOSldKck5leGt2d25CYkRqZz09\">https:\/\/us02web.zoom.us\/j\/84987591026?pwd=aTJWcFlOSldKck5leGt2d25CYkRqZz09<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Meeting ID: 849 8759 1026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Time: Sunday, Nov, 7 at 17:00 (Israel Time) Location: On Zoom https:\/\/us02web.zoom.us\/rec\/share\/58OVaq8ckzWZflq-rW1yThWtxr3XgOwYqF7VHk25SRGMOrJkdKFFQznre3OHdRX6.gG2nOZHpg4sDYSvP Speaker: Andrea Gagna (Czech Academy of Sciences) Title:&nbsp; &#8220;(\u221e, 2)-categories and where to find them&#8221; Abstract: In this talk I will&nbsp;briefly review some of the reasons why&nbsp;\u221e-categories were&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/mathematics.haifa.ac.il\/?p=2192\">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-2192","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\/2192","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=2192"}],"version-history":[{"count":3,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2192\/revisions"}],"predecessor-version":[{"id":2210,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2192\/revisions\/2210"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}