You are cordially invited to the Algebra Seminar organized by the Department of Mathematics.<\/p>\n
Speaker: Cihan Bahran (Bilkent)<\/p>\n
“Polynomiality in symmetric group representations via FI-modules”<\/p>\n
Abstract: Writing FI for the category of finite sets and injections and k for a fixed commutative ring, a functor V: FI \u2192 k-Mod simultaneously defines a sequence (V_n) of symmetric group representations (over k) for every n, which moreover come equipped with transition maps between them. When k is a field, the main result (and possibly refinements) I will mention in this talk is due to Church\u2013Ellenberg\u2013Farb\u2013Nagpal: roughly, certain finiteness properties on V imply the polynomial behavior I mentioned in my previous talk (I will not assume the listeners attended it) on the sequence (V_n).<\/p>\n
Date: 18 February 2026
\nTime: 13:30
\nPlace: SA-141<\/p>\n","protected":false},"excerpt":{"rendered":"
You are cordially invited to the Algebra Seminar organized by the Department of Mathematics. Speaker: Cihan Bahran (Bilkent) “Polynomiality in symmetric group representations via FI-modules” Abstract: Writing FI for the category of finite sets and injections and k for a fixed commutative ring, a functor V: FI \u2192 k-Mod simultaneously [\u2026] <\/p>\n