Fall 2009 Office Hours
- MWF 10-11 am, TWTh 2:30-3:30 pm, TTh 11--12 am, and by appointment.
My Mathematical Interests
I am interested in analytic number theory. Some of my recent papers involve sieve
methods, Sidon sequences, distribution of values of the Euler-phi function, and
divisors of factorials. Some of my recent papers are
available for download in pdf and dvi formats.
I have Erdös
number 1, but so do over 500 other people. My one paper
with Erdös is on divisors of factorials.
- What day of the week was July 4, 1776? If you want to learn how to answer
questions like this, check out the Doomsday
- Start with 14 pegs in the following configuration:
Start jumping pegs as you do in checkers; remove the jumped pegs as you go.
Can you end up with just one peg? If you want to learn how to do problems like
this, check out Peg Solitaire.
Separated at Birth?
I spent three years working at the National Science Foundation in Arlington,
Virginia. People would occasionally mistake me for Representative Peter DeFazio,
D-Oregon. Compare for yourself.
Pictures from France
In July 2004, Mary and I went on barge cruise in Burgundy. Here are
some pictures from the trip.