Joseph Baine will give the Seminar’s fourth talk for Semester 1 tomorrow morning on Zoom. Please find the details below. Anyone who would like to attend the talk or join the mailing list is warmly invited to e-mail ciappara@maths.usyd.edu.au. Title: Derived categories of sheaves Abstract: In this talk we will review the categories of sheaves, local systems and constructible sheaves on a topological space. We will then consider operations (Grothendieck’s six functor formalism) on these categories and their derived analogues. These categories will provide context and examples for many of the notions we have previously seen. Time and date: 11 am, Thursday 15 April Seminar website: https://www.maths.usyd.edu.au/u/ciappara/SAS.html