{"id":7060,"date":"2022-11-06T18:46:02","date_gmt":"2022-11-06T17:46:02","guid":{"rendered":"https:\/\/www.dm.unipi.it\/?post_type=unipievents&#038;p=7060"},"modified":"2022-11-07T11:30:24","modified_gmt":"2022-11-07T10:30:24","slug":"discontinuities-cause-essential-spectrum-giovanni-canestrari-universita-roma-tor-vergata","status":"publish","type":"unipievents","link":"https:\/\/www.dm.unipi.it\/en\/eventi\/discontinuities-cause-essential-spectrum-giovanni-canestrari-universita-roma-tor-vergata\/","title":{"rendered":"Discontinuities cause essential spectrum &ndash; Giovanni Canestrari (Universit\u00e0 Roma Tor Vergata)"},"content":{"rendered":"\n<p>In this seminar I will introduce transfer operators associated to piecewise monotone interval transformationsand and show that, for a large class of Banach spaces, the essential spectrum is large whenever\u00a0the transformation fails to be Markov.\u00a0 After comparing our results with the literature, we show how to construct a family of Banach spaces which proves that the lower bound on the essential spectral radius is optimal. Indeed, these Banach spaces realise an essential spectral radius as close as desired to the theoretical best possible case.<\/p>\n\n\n\n<p>Further information is available on the\u00a0<a href=\"https:\/\/events.dm.unipi.it\/event\/130\/\">event page<\/a>\u00a0on the Indico platform.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this seminar I will introduce transfer operators associated to piecewise monotone interval transformationsand and show that, for a large&hellip;<\/p>\n<p><a class=\"btn btn-dark btn-sm unipi-read-more-link\" href=\"https:\/\/www.dm.unipi.it\/en\/eventi\/discontinuities-cause-essential-spectrum-giovanni-canestrari-universita-roma-tor-vergata\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":51,"featured_media":0,"template":"","tags":[],"unipievents_taxonomy":[],"class_list":["post-7060","unipievents","type-unipievents","status-publish","hentry"],"acf":[],"unipievents_startdate":1668006000,"unipievents_enddate":1668009600,"unipievents_place":"SNS - Centro De Giorgi - Aula Seminari","unipievents_externalid":0,"jetpack_sharing_enabled":true,"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents\/7060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents"}],"about":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/types\/unipievents"}],"author":[{"embeddable":true,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/users\/51"}],"version-history":[{"count":6,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents\/7060\/revisions"}],"predecessor-version":[{"id":7067,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents\/7060\/revisions\/7067"}],"wp:attachment":[{"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/media?parent=7060"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/tags?post=7060"},{"taxonomy":"unipievents_taxonomy","embeddable":true,"href":"https:\/\/www.dm.unipi.it\/en\/wp-json\/wp\/v2\/unipievents_taxonomy?post=7060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}