Office hours are Mondays and Wednesdays 12 - 1:30.

I am also often available at other times, so feel free to drop by.

Topology and Geometry by Glen Bredon

Lecture on Category Theory

Lecture on Functoriality of homology

Lecture on Homological Algebra

Lecture on the Snake Lemma

Lecture on Exact Sequences in Homology

Lecture on the Axioms of Homology