There is no particular order to the items below. Caveat lector: A lot of these notes reflect my initial attempts at understanding a particular topic, much of the writing is quite bad, riddled with errors and incomplete.
The Grothendieck group [.pdf] [.html]
Weak sl2-categorifications [.pdf] [.html]
Trace in categories [.pdf]
Adjoint functors [.pdf] [.html]
Limits and adjoints [.pdf]
Grothendieck group of the derived category [.pdf] [.html]
Nakayama's lemma [.pdf] [.html]
Localization [.pdf] [.html]
Last updated: 30 June, 2008