https://sparse-graphs.mimuw.edu.pl/ 2026-10-27T10:51:43+00:00 https://sparse-graphs.mimuw.edu.pl/ https://sparse-graphs.mimuw.edu.pl/lib/tpl/dokuwiki/images/favicon.ico text/html 2022-02-04T12:41:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://sparse-graphs.mimuw.edu.pl/doku.php?id=sessions:2022sessions:2022cafesession1&rev=1643978490&do=diff 2022 Café Session 1 An (online) experiment to provoke the type of discussions one might have during in-person workshops at coffee, dinner or on an excursion. Organisers Stijn Cambie, Ross Kang, Jean-Sébastien Sereni, Lena Yuditsky Dates 2nd and 3rd of February 2022 Format On Wednesday afternoon (14:30-16:30 European time), we planned informal interviews with Reinhard Diestel and Catherine McGeoch. On Thursday afternoon (15:00-), we planned text/html 2022-09-20T09:20:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://sparse-graphs.mimuw.edu.pl/doku.php?id=sessions:2022sessions:2022session1&rev=1663665642&do=diff 2022 Session 1 : Directed minors and digraph structure theory Digraph structure theory has known several exciting developments recently. We propose to learn and work on topics around the directed flat wall theorem. In particular, there will be introductory talks to butterfly minors, directed tree-width, the directed grid-theorem and the directed flat wall theorem. We shall also explore links and extensions of these (matching theory, tournaments immersion, strong minors).