Cohomology: Recollection and Foliations

This lecture on December 10 covers the topic of cohomology, focusing on recollection and foliations in an abelian category. The instructor explains the concept of a complex in A, injective resolutions, and acyclic objects. The lecture delves into the compatibility of boundaries, injective resolutions, and derived functors, emphasizing the importance of homotopy equivalence. The discussion also includes additive functors, F-acyclic objects, and the properties of derived functors in an abelian category.