Institute of Mathematics


Modul:   MAT770  Oberseminar: Algebraische Geometrie

Derived factorisation categories of non-Thom--Sebastiani-type sum of potentials

Dr. Yuki Hirano talk

Speaker invited by: Prof. Dr. Christian Okonek

Date: 20.05.19  Time: 13.15 - 14.45  Room: Y27H25

We prove a semi-orthogonal decomposition of derived factorization categories associated to the sum of potential that is not necessarily Thom--Sebastiani type. As an application, we show that the homotopy category of maximally graded matrix factorisations of an invertible polynomial of chain type has a full exceptional collection. This is a joint work with Genki Ouchi.