{"id":2174,"date":"2021-10-26T11:51:21","date_gmt":"2021-10-26T08:51:21","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=2174"},"modified":"2021-10-26T11:58:02","modified_gmt":"2021-10-26T08:58:02","slug":"u-haifa-topology-geometry-seminar-yaniv-ganor-technion-on-oct-24-2021","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=2174","title":{"rendered":"U. Haifa Topology & Geometry seminar: Sunday, OCT 24, 2021. Speaker: Yaniv Ganor (Technion). “Big Fiber Theorems and Ideal-Valued Measures in Symplectic Topology”"},"content":{"rendered":"

Time: Sunday Oct. 24th 17:00<\/p>\n

Speaker: Yaniv Ganor (Technion)<\/p>\n

Title: Big Fiber Theorems and Ideal-Valued Measures in Symplectic Topology<\/p>\n

Location: On Zoom and in Room 614 Haifa University Mathematics and Science Building<\/p>\n

Zoom link:<\/p>\n

https:\/\/us02web.zoom.us\/recording\/detail?meeting_id=Sk9IUknKRJGknIqZ1jWJ7g%3D%3D<\/a><\/p>\n

Abstract:
\nIn various areas of mathematics there exist “big fiber theorems”, these are theorems of the following type: “For any map in a certain class, there exists a ‘big’ fiber”, where the class of maps and the notion of size changes from case to case.<\/p>\n

We will discuss three examples of such theorems, coming from combinatorics, topology and symplectic topology from a unified viewpoint provided by Gromov’s notion of ideal-valued measures.<\/p>\n

We adapt the latter notion to the realm of symplectic topology, using an enhancement of Varolgunes\u2019 relative symplectic cohomology to include cohomology of pairs. This allows us to prove symplectic analogues for the first two theorems, yielding new symplectic rigidity results.<\/p>\n

Necessary preliminaries will be explained.
\nThe talk is based on a joint work with Adi Dickstein, Leonid Polterovich and Frol Zapolsky.<\/p>\n","protected":false},"excerpt":{"rendered":"

Time: Sunday Oct. 24th 17:00 Speaker: Yaniv Ganor (Technion) Title: Big Fiber Theorems and Ideal-Valued Measures in Symplectic Topology Location: On Zoom and in Room 614 Haifa University Mathematics and Science Building Zoom link: https:\/\/us02web.zoom.us\/recording\/detail?meeting_id=Sk9IUknKRJGknIqZ1jWJ7g%3D%3D Abstract: In various areas of…
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-2174","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\/2174","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=2174"}],"version-history":[{"count":5,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2174\/revisions"}],"predecessor-version":[{"id":2180,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/2174\/revisions\/2180"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}