Day-to-day notes will be posted here. Get in the habit of checking it fairly often...
- You may want to look at Elementary
Number Theory by William Stein.
- A whole host of online notes, books etc. on number theory is
collated on the Number
Theory Web.
- Office hours will
typically be Wednesday 1-2 and Thursday 2-3.
- 2/10 -- office hours cancelled today.
- Notes on
the Archimedes
cattle problem
by Chris Rorres.
- Unfortunately, no office hours 2/17 or 2/18. If you have
questions we can't resolve by email, ask them in class on Friday.
- Notes from Feb
24.
- The first midterm has moved to Monday, March 8.
- The second midterm has moved to Monday, April 19.
- Some ideas for topics for the
final project.
- Deleted problem four from HW10. But in fact, it's easy. Our
proof of Mobius inversion doesn't, and need not, assume that the
sequences in question are multiplicative. Thus,
if ad
and bd are defined for all
divisors d of N, and if
an = &Sigmad |
nbd,
then
bn = &Sigmad |
n&mu(n/d)ad.
Also, note that in class we could have saved ourselves the
(considerable!) trouble of showing that S is multiplicative.
- The treatment of Dirichlet series comes from
Generatingfunctionology
by
Herb
Wilf.
- The last lemma from class on
April 28.
- We will be having final presentations on Friday, May 7, and on
Thursday, May 13. Roster:
F | R |
ms | pt |
jw | wj |
| aw |
| dm |
| gc |
| am |
| ka |