Place: Room 614 in the Education & Sciences Building Time: 14:00   Abstract:   Being fractionally Calabi-Yau is a periodicity property of triangulated categories introduced by Kontsevich more than 20 years ago. It is quite rare that a finite-dimensional algebra has … Continue reading Colloquium: Tuesday, January 21, 2020. Speaker: Sefi Ladkani (Haifa). Title: “Stratifications of posets, derived equivalences and Calabi-Yau properties”.