{"id":2213,"date":"2021-11-18T18:23:31","date_gmt":"2021-11-18T16:23:31","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=2213"},"modified":"2021-11-25T10:42:00","modified_gmt":"2021-11-25T08:42:00","slug":"colloquium-tuesday-november-23-2021-speaker-speaker-yael-karshon-tel-aviv-university-university-of-toronto-title-title-symplectic-excision","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=2213","title":{"rendered":"Colloquium: Tuesday, November 23, 2021. Speaker: Yael Karshon (Tel Aviv University, University of Toronto). Title: &#8220;Symplectic excision&#8221;."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Zoom link: <\/strong><a href=\"https:\/\/us02web.zoom.us\/j\/82797905845?pwd=VUxHdkwyRzZIOHdDWkF2OC92U0p6UT09\">https:\/\/us02web.zoom.us\/j\/82797905845?pwd=VUxHdkwyRzZIOHdDWkF2OC92U0p6UT09<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Speaker: Yael Karshon (Tel Aviv University, University of Toronto)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Date: <strong>Tuesday, November 23, 2021<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Time: <strong>14:00<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Title: Symplectic excision<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Abstract: Removing a properly embedded ray from a (noncompact) manifold does not affect its topology nor its diffeotype.&nbsp;What about the symplectic analogue of this fact? And can we go beyond rays?<br>I will show how to use incomplete flows to excise interesting subsets: the product of a ray with a Cantor set; a &#8220;ray with two horns&#8221;; a &#8220;box with a tail&#8221;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is based on joint work with Xiudi Tang, which answers a question of Alan Weinstein.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Zoom link: https:\/\/us02web.zoom.us\/j\/82797905845?pwd=VUxHdkwyRzZIOHdDWkF2OC92U0p6UT09 Speaker: Yael Karshon (Tel Aviv University, University of Toronto) Date: Tuesday, November 23, 2021 Time: 14:00 Title: Symplectic excision Abstract: Removing a properly embedded ray from a (noncompact) manifold does not affect its topology nor its diffeotype.&nbsp;What&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/mathematics.haifa.ac.il\/?p=2213\">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":[7],"tags":[],"class_list":["post-2213","post","type-post","status-publish","format-standard","hentry","category-colloquium"],"_links":{"self":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2213","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=2213"}],"version-history":[{"count":2,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2213\/revisions"}],"predecessor-version":[{"id":2219,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2213\/revisions\/2219"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}