Assignments 1 & 2

The due date for Assignment 2 is Mon, 8 Oct 2012.

Solution to Problem 2 in Assignment 2:
https://docs.google.com/open?id=0ByLKvT5pNMy0eUQ1bTNJb0FPMVE

The due date for Assignment 1 is Mon, 17 Sep 2012.
Note: you may assume that the abelian category is small in Problem 2.