You are cordially invited to the Algebra Seminar organized by the Department of Mathematics.<\/p>\n
Speaker: Ezgi Kantarc\u0131 O\u011fuz (Galatasaray \u00dcniversitesi)<\/p>\n
“Unimodality of Fences and Oriented posets.”<\/p>\n
Abstract: Fence posets are combinatorial objects that come up in a variety of settings, recently in the work of Morier-Genoud and Ovsienko regarding q-defomed rationals. We prove their conjecture that says that rank polynomials of fence posets are unimodal by introducing a related class of circular fence posets. We further show a piece-by-piece combinatorial method of building fence posets (and others) and calculating their rank polynomials easily via 2×2 matrices. We discuss recent results and further work. (partially based on joint works with Emine Y\u0131ld\u0131r\u0131m, Mohan Ravichandran and Yal\u0131m \u00d6zel).<\/p>\n
Date: Monday, March 20, 2023
\nTime: 15:30 \u2013 16:30 (UTC+3)<\/p>\n
This is an online seminar. To request the event link, please send a message to d.yilmaz@bilkent.edu.tr<\/p>\n","protected":false},"excerpt":{"rendered":"
You are cordially invited to the Algebra Seminar organized by the Department of Mathematics. Speaker: Ezgi Kantarc\u0131 O\u011fuz (Galatasaray \u00dcniversitesi) “Unimodality of Fences and Oriented posets.” Abstract: Fence posets are combinatorial objects that come up in a variety of settings, recently in the work of Morier-Genoud and Ovsienko regarding q-defomed [\u2026] <\/p>\n