{"id":1218,"date":"2018-10-17T10:28:08","date_gmt":"2018-10-17T07:28:08","guid":{"rendered":"https:\/\/mathematics.haifa.ac.il\/?p=1218"},"modified":"2018-10-31T10:48:50","modified_gmt":"2018-10-31T08:48:50","slug":"colloquium-tuesday-october-23-2018-speaker-ami-viselter-university-of-haifa-title-convolution-semigroups-on-quantum-groups-and-non-commutative-dirichlet-forms","status":"publish","type":"post","link":"https:\/\/mathematics.haifa.ac.il\/?p=1218","title":{"rendered":"Colloquium: Tuesday, October 23, 2018. Speaker: Ami Viselter (University of Haifa). Title: &#8220;Convolution semigroups on quantum groups and non-commutative Dirichlet forms&#8221;."},"content":{"rendered":"<p class=\"m_8806268038780128559x_MsoNormal\">Department of Mathematics\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<wbr \/>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<wbr \/>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 University of \u00a0Haifa<\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<wbr \/>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<b><u>Colloquiu<wbr \/>m<\/u><\/b><\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\">Speaker: Ami Viselter\u00a0(University of Haifa)<\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\">Topic:\u00a0Convolution semigroups on quantum groups and non-commutative Dirichlet forms<\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\">Place:\u00a0Room 614 in the Science &amp; Education Building<\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\">Time:\u00a014:00<\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\">Date:\u00a0Tuesday, October 23, 2018<\/p>\n<p class=\"m_8806268038780128559x_MsoNormal\"><span class=\"m_8806268038780128559x_gmail-m-2341720118617838507m-96118281130883469m6580072651069480400m-1739154951406615648m-565329326116938162gmail-il\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<wbr \/>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"m_8806268038780128559x_gmail-m-2341720118617838507m-96118281130883469m6580072651069480400m-1739154951406615648m-565329326116938162gmail-il\"><b><u>Abstract<\/u><\/b><\/span><b><u>:<\/u><\/b><\/p>\n<div>We will discuss convolution semigroups of states on locally compact quantum groups. They generalize the families of distributions<br \/>\nof L\\&#8217;evy processes from probability. We are particularly interested in semigroups that are symmetric in a suitable sense. These are proved to be in one-to-one correspondence with KMS-symmetric Markov semigroups on the $L^\\infty$ algebra that satisfy a natural commutation condition, as well as with non-commutative Dirichlet forms on the $L^2$ space that satisfy a natural translation invariance condition. This Dirichlet forms machinery turns out to be a powerful tool for analyzing convolution semigroups as well as proving their existence. We will use it to derive geometric characterizations of the Haagerup Property and of Property<br \/>\n(T) for locally compact quantum groups, unifying and extending earlier partial results. Based on joint work with Adam Skalski.<\/div>\n<p class=\"m_8806268038780128559x_MsoNormal\">Tea will be served before the talk.<b><i><br \/>\n<\/i><\/b><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Department of Mathematics\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 University of \u00a0Haifa \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Colloquium Speaker: Ami Viselter\u00a0(University of Haifa) Topic:\u00a0Convolution semigroups on quantum groups and non-commutative Dirichlet forms Place:\u00a0Room 614 in the Science &amp; Education Building Time:\u00a014:00 Date:\u00a0Tuesday, October 23, 2018 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Abstract: We will discuss convolution semigroups&#8230;<br \/><a class=\"read-more-button\" href=\"https:\/\/mathematics.haifa.ac.il\/?p=1218\">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-1218","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\/1218","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=1218"}],"version-history":[{"count":2,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/1218\/revisions"}],"predecessor-version":[{"id":1261,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=\/wp\/v2\/posts\/1218\/revisions\/1261"}],"wp:attachment":[{"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mathematics.haifa.ac.il\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}