{"id":12154,"date":"2019-10-18T10:00:50","date_gmt":"2019-10-18T07:00:50","guid":{"rendered":"https:\/\/w3.bilkent.edu.tr\/en\/?p=12154"},"modified":"2019-10-22T09:32:14","modified_gmt":"2019-10-22T06:32:14","slug":"math-seminar-distance-of-the-set-of-commutators-to-the-identity-aurelian-gheondea-sa-z18-2pm-october-21-en","status":"publish","type":"post","link":"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-distance-of-the-set-of-commutators-to-the-identity-aurelian-gheondea-sa-z18-2pm-october-21-en\/","title":{"rendered":"MATH Seminar: &#8220;Distance of the Set of Commutators to the Identity,&#8221; Aurelian Gheondea, SA-Z18, 2PM October 21 (EN)"},"content":{"rendered":"<p>Dear Colleagues and Students,<\/p>\n<p>You are cordially invited to the Analysis Seminar organized by the Department of Mathematics.<\/p>\n<p>Speaker: Aurelian Gheondea (Bilkent)<\/p>\n<p>&#8220;Distance of the set of commutators to the identity&#8221;<\/p>\n<p>Abstract: According to a classical theorem of Wintner and Wielandt, the equation [A,B]=I does not have any solution A and B in the algebra of linear bounded operators B(H) on a Hilbert space H, where [A,B]=AB-BA denotes the commutator of A and B, and I denotes the identity operator on H. We present a survey of known results for the estimation of the distance from the set of commutators to the identity and some open questions. Senior and graduate students are welcome.<\/p>\n<p>Date: Monday, October 21, 2019<br \/>\nTime: 14:00<br \/>\nPlace: SA \u2013 Z18<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dear Colleagues and Students, You are cordially invited to the Analysis Seminar organized by the Department of Mathematics. Speaker: Aurelian Gheondea (Bilkent) &#8220;Distance of the set of commutators to the identity&#8221; Abstract: According to a classical theorem of Wintner and Wielandt, the equation [A,B]=I does not have any solution A [\u2026] <\/p>\n<div class=\"clear\"><\/div>\n<p><a class=\"more_link clearfix\" href=\"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-distance-of-the-set-of-commutators-to-the-identity-aurelian-gheondea-sa-z18-2pm-october-21-en\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-12154","post","type-post","status-publish","format-standard","hentry","category-oldposts"],"_links":{"self":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/12154","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/comments?post=12154"}],"version-history":[{"count":1,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/12154\/revisions"}],"predecessor-version":[{"id":12155,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/12154\/revisions\/12155"}],"wp:attachment":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/media?parent=12154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/categories?post=12154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/tags?post=12154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}