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

Vortrag von Dr. Yuki Hirano

Sprecher eingeladen von: Prof. Dr. Christian Okonek

Datum: 20.05.19  Zeit: 13.15 - 14.45  Raum: 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.