Patrick Naylor, Department of Pure Mathematics, University of Waterloo
“Sheaves and more sheaves”
The discussion of sheaves and stalks continues. This week, we’ll be mostly concerned with sheaves of abelian groups. We’ll define the presheaf kernel and presheaf cokernel, and attempt to give meaning to such categorical definitions. If time permits, we’ll move to section 2.4 of Dr. Vakil’s notes, where we’ll see how to link some of the properties of sheaves with those of stalks.
MC 5413