Seminar: Doğancan Karabaş - Gluing methods for DG categories from geometry (Feb 17, 2026)

Speaker: Doğancan Karabaş (Temple University, Japan Campus)
Title: Gluing methods for DG categories from geometry
Time: February 17, 2026 at 13:00 Istanbul local time (19:00 Tokyo local time) (Note the unusual time!)
Place: Online
Meeting ID: 935 6390 4955
Passcode: 699568
Abstract: Many dg categories arising in geometry admit local descriptions that can be assembled via homotopy-theoretic gluing. In this talk, I will survey a categorical framework, developed jointly with Sangjin Lee, which provides a model-theoretic and combinatorial description of such gluings, namely homotopy colimits. This approach leads to explicit computations of invariants in symplectic geometry and microlocal sheaf theory. In particular, I will describe our result proving a conjecture of Kontsevich that wrapped Fukaya categories of Weinstein manifolds are Morita equivalent to dg algebras of finite type.