{"id":20068,"date":"2023-10-01T09:40:03","date_gmt":"2023-10-01T06:40:03","guid":{"rendered":"https:\/\/w3.bilkent.edu.tr\/en\/?p=20068"},"modified":"2023-10-04T16:59:00","modified_gmt":"2023-10-04T13:59:00","slug":"math-seminar-partially-positive-semidefinite-maps-on-semigroupoids-aurelian-gheondea-145pm-october-4-en","status":"publish","type":"post","link":"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-partially-positive-semidefinite-maps-on-semigroupoids-aurelian-gheondea-145pm-october-4-en\/","title":{"rendered":"MATH Seminar: \u201cPartially Positive Semidefinite Maps on *-Semigroupoids\u201d, Aurelian Gheondea, 1:45PM October 4 (EN)"},"content":{"rendered":"<p>You are cordially invited to the Analysis Seminar organized by the Department of Mathematics.<\/p>\n<p>Speaker: Aurelian Gheondea (Bilkent)<br \/>\n\u201cPartially Positive Semidefinite Maps on *-Semigroupoids.\u201d<\/p>\n<p>Abstract: Motivated by Cuntz-Krieger-Toeplitz systems associated with undirected graphs and representations of groupoids, we obtain a generalization of the Sz-Nagy\u2019s Dilation Theorem for operator-valued partially positive semidefinite maps on *-semigroupoids with the unit, with varying degrees of aggregation, firstly by *-representations with unbounded operators and then we characterize the existence of the corresponding *-representations by bounded operators.<\/p>\n<p>Date: Wednesday, October 4, 2023<br \/>\nTime: 13:45 \u2013 14:45<br \/>\nPlace: Mathematics Seminar Room, SA \u2013 141<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You are cordially invited to the Analysis Seminar organized by the Department of Mathematics. Speaker: Aurelian Gheondea (Bilkent) \u201cPartially Positive Semidefinite Maps on *-Semigroupoids.\u201d Abstract: Motivated by Cuntz-Krieger-Toeplitz systems associated with undirected graphs and representations of groupoids, we obtain a generalization of the Sz-Nagy\u2019s Dilation Theorem for operator-valued partially positive [\u2026] <\/p>\n<div class=\"clear\"><\/div>\n<p><a class=\"more_link clearfix\" href=\"https:\/\/w3.bilkent.edu.tr\/en\/math-seminar-partially-positive-semidefinite-maps-on-semigroupoids-aurelian-gheondea-145pm-october-4-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-20068","post","type-post","status-publish","format-standard","hentry","category-oldposts"],"_links":{"self":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/20068","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=20068"}],"version-history":[{"count":1,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/20068\/revisions"}],"predecessor-version":[{"id":20069,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/posts\/20068\/revisions\/20069"}],"wp:attachment":[{"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/media?parent=20068"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/categories?post=20068"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/w3.bilkent.edu.tr\/en\/wp-json\/wp\/v2\/tags?post=20068"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}