{"id":5207,"date":"2023-11-13T10:33:22","date_gmt":"2023-11-13T15:33:22","guid":{"rendered":"http:\/\/matroidunion.org\/?p=5207"},"modified":"2023-11-15T19:27:59","modified_gmt":"2023-11-16T00:27:59","slug":"online-talk-jim-geelen-4","status":"publish","type":"post","link":"https:\/\/matroidunion.org\/?p=5207","title":{"rendered":"Online Talk: Jim Geelen"},"content":{"rendered":"\n<p>Please advertise this talk at your home institution. Anyone is welcome to attend!\u00a0<\/p>\n<p><strong>YouTube recording: <\/strong><a href=\"https:\/\/www.youtube.com\/watch?v=aOpvWW1lBH8\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/watch?v=aOpvWW1lBH8<\/a><\/p>\n<p><strong>Time:<\/strong> Wednesday, Nov 15 at 3pm ET<br \/><strong>Zoom:\u00a0<\/strong><a href=\"https:\/\/gatech.zoom.us\/j\/8802082683\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/gatech.zoom.us\/j\/8802082683<\/a><\/p>\n<p><strong>Speaker:\u00a0<\/strong><a href=\"https:\/\/www.math.uwaterloo.ca\/~jfgeelen\/\" target=\"_blank\" rel=\"noopener\">Jim Geelen<\/a>, University of Waterloo<br \/><strong>Title:<\/strong> Average plane-size<\/p>\n<p><strong>Abstract:<\/strong> In 1941, Eberhard Melchior proved that the average line-length of a simple rank-3 real-representable matroid is less than three.\u00a0 We discuss a long-overdue analogue of Melchior&#8217;s result that the average plane-size of a simple rank-4 real-representable matroid is bounded above by an absolute constant, unless the matroid is the direct-sum of two lines. This is joint work with Rutger Campbell and Matthew Kroeker.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Please advertise this talk at your home institution. Anyone is welcome to attend!\u00a0 YouTube recording: https:\/\/www.youtube.com\/watch?v=aOpvWW1lBH8 Time: Wednesday, Nov 15 at 3pm ETZoom:\u00a0https:\/\/gatech.zoom.us\/j\/8802082683 Speaker:\u00a0Jim Geelen, University of WaterlooTitle: Average plane-size Abstract: In 1941, Eberhard Melchior proved that the average line-length &hellip; <a href=\"https:\/\/matroidunion.org\/?p=5207\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":21,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11],"class_list":["post-5207","post","type-post","status-publish","format-standard","hentry","category-matroids","tag-online-talks"],"_links":{"self":[{"href":"https:\/\/matroidunion.org\/index.php?rest_route=\/wp\/v2\/posts\/5207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matroidunion.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matroidunion.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matroidunion.org\/index.php?rest_route=\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"https:\/\/matroidunion.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5207"}],"version-history":[{"count":2,"href":"https:\/\/matroidunion.org\/index.php?rest_route=\/wp\/v2\/posts\/5207\/revisions"}],"predecessor-version":[{"id":5210,"href":"https:\/\/matroidunion.org\/index.php?rest_route=\/wp\/v2\/posts\/5207\/revisions\/5210"}],"wp:attachment":[{"href":"https:\/\/matroidunion.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matroidunion.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matroidunion.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}