{"id":24059,"date":"2025-03-05T13:28:06","date_gmt":"2025-03-05T10:28:06","guid":{"rendered":"https:\/\/w3.bilkent.edu.tr\/en\/?p=24059"},"modified":"2025-03-10T00:14:11","modified_gmt":"2025-03-09T21:14:11","slug":"math-seminar-fano-varieties-with-torsion-in-the-third-cohomology-group-john-christian-ottem-340pm-march-7-2025-en","status":"publish","type":"post","link":"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-fano-varieties-with-torsion-in-the-third-cohomology-group-john-christian-ottem-340pm-march-7-2025-en\/","title":{"rendered":"MATH Seminar: \u201cFano Varieties with Torsion in the Third Cohomology Group\u201d, John Christian Ottem, 3:40PM March 7 2025 (EN)"},"content":{"rendered":"<p>You are cordially invited to the ODTU-Bilkent Algebraic Geometry Seminar.<\/p>\n<p>Speaker: John Christian Ottem (Oslo)<\/p>\n<p>\u201cFano varieties with torsion in the third cohomology group\u201d<\/p>\n<p>Abstract: I will explain a construction of Fano varieties with torsion in their third cohomology group. The examples are constructed as double covers of linear sections of rank loci of symmetric matrices, and can be seen as higher-dimensional analogues of the Artin\u2013 Mumford threefold. As an application, we will answer a question of Voisin on the coniveau and strong coniveau filtrations of rationally connected varieties.<\/p>\n<p>Date: 7 March 2025, Friday<br \/>\nTime: 15:40 (GMT+3)<br \/>\nPlace: Zoom<\/p>\n<p>This is an online seminar. To request the Zoom link, please send a message to sertoz@bilkent.edu.tr<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You are cordially invited to the ODTU-Bilkent Algebraic Geometry Seminar. Speaker: John Christian Ottem (Oslo) \u201cFano varieties with torsion in the third cohomology group\u201d Abstract: I will explain a construction of Fano varieties with torsion in their third cohomology group. The examples are constructed as double covers of linear sections [\u2026] <\/p>\n<div class=\"clear\"><\/div>\n<p><a class=\"more_link clearfix\" href=\"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-fano-varieties-with-torsion-in-the-third-cohomology-group-john-christian-ottem-340pm-march-7-2025-en\/\" rel=\"nofollow\">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":[12],"tags":[],"class_list":["post-24059","post","type-post","status-publish","format-standard","hentry","category-oldposts"],"_links":{"self":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/24059","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/comments?post=24059"}],"version-history":[{"count":1,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/24059\/revisions"}],"predecessor-version":[{"id":24060,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/24059\/revisions\/24060"}],"wp:attachment":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/media?parent=24059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/categories?post=24059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/tags?post=24059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}