{"id":2520,"date":"2022-12-07T10:13:25","date_gmt":"2022-12-07T08:13:25","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=2520"},"modified":"2022-12-14T17:21:39","modified_gmt":"2022-12-14T15:21:39","slug":"u-haifa-algebra-seminar-wednesday-december-7-2022-speaker-sergei-merkulov-university-of-luxembourg-title-gravity-and-moduli-spaces-m_gn","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=2520","title":{"rendered":"U. Haifa Algebra seminar: Wednesday,\u00a0December 7, 2022. Speaker: Sergei Merkulov (University of Luxembourg). Title: &#8220;Gravity \u00a0and moduli spaces M_g,n&#8221;."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Date:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Wednesday, December 7, 2022 at 12:00 PM&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Place:&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Room 614, Science &amp; Education Building, U. Haifa<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Speaker:&nbsp; &nbsp;&nbsp;Sergei Merkulov (University of Luxembourg)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Title:&nbsp;Gravity &nbsp;and moduli spaces M_g,n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Using Thomas Willwacher\u2019s twisting endofunctor, and Kevin Costello\u2019s theory of partially compactified moduli spaces of algebraic curves of the arbitrary genus with marked points, we introduce a new dg properad which contains Ezra Getzler\u2019s gravity operad controlling genus zero moduli spaces, and, surprisingly, the properad of V. Drinfeld\u2019s quasi Lie bialgebras. We discuss its applications in the theory of moduli spaces M_g,n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">===&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P.S. Here is a zoom link for those who want to attend by zoom and have no chance to come in person:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Join Zoom Meeting<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/us02web.zoom.us\/j\/86813044737?pwd=UnNHenU5R2hZQUdkcW5SUnM1QXo1UT09\">https:\/\/us02web.zoom.us\/j\/86813044737?pwd=UnNHenU5R2hZQUdkcW5SUnM1QXo1UT09<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Meeting ID: 868 1304 4737<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Date:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Wednesday, December 7, 2022 at 12:00 PM&nbsp; Place:&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Room 614, Science &amp; Education Building, U. Haifa Speaker:&nbsp; &nbsp;&nbsp;Sergei Merkulov (University of Luxembourg) Title:&nbsp;Gravity &nbsp;and moduli spaces M_g,n Using Thomas Willwacher\u2019s twisting endofunctor, and Kevin&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/mathematics.haifa.ac.il\/?p=2520\">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":[5,4],"tags":[],"class_list":["post-2520","post","type-post","status-publish","format-standard","hentry","category-algebra-seminar","category-seminar"],"_links":{"self":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2520","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=2520"}],"version-history":[{"count":1,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2520\/revisions"}],"predecessor-version":[{"id":2521,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2520\/revisions\/2521"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}