2007-09-28

1. Homework: is "Due Monday" or "Due Friday" better than "Due Wednesday"?
2. Email: By default, my response to almost anything you ask me in email will be cc'd to the mailing list.
3. Next week: Trevor Arnold will teach -- Noetherian rings, rings of integers.
4. Today: Finitely generated abelian groups and Smith form

A 2x2 example:

  15  9
  12  6


A 3x3 example:

  2  3  4
  5  6  7
  8  9 10