## USNA Midshipman-Faculty Colloquium

** Chauvenet 216 at 7 pm **

**Speaker**:
# Dr. Carl Pomerance

##
Lucent Technologies, Bell Labs

** Title:**

#
Babe Ruth, Hank Aaron, Paul Erdos and me

**Abstract**:
For many decades the premiere baseball statistic was Babe Ruth's lifetime
homerun record of 714. In 1974, Hank Aaron
of the Atlanta Braves hit his 715-th career homerun,
finally eclipsing Ruth. This event led to a whimsical paper by
me and two colleagues on interesting properties of the
numbers 714 and 715, published in the Journal of Recreational Mathematics.
Not exactly rocket science. But, as it turned out, the paper had a
famous reader, the great mathematician Paul Erdos.
This began a mathematical odyssey that
resulted in a long collaboration with Erdos, changing my mathematical
life forever. In fact, some of the things that I learned from
Erdos were later put to use benchmarking the security of
public-key cryptography. And it all started from a baseball game.

**Time**: 7-8pm, Thursday April 25, 2002

Biography: Carl Pomerance is one of the world's top number theorists.
He received his PhD from Harvard University (under John Tate)
in 1972. After graduating, he immediately joined the faculty at
the University of Georgia, becoming full professor in 1982.
He is now with Bell Labs, at Lucent. He has won many teaching and
research awards, including the Chauvenet Prize in 1985,
MAA's distinguished university teaching award in 1997,
and the AMS's Conant Prize in 2001.
He has over 120 publications, and is the author (with R. Crandell)
of "Prime numbers: a computational perspective", Springer-Verlag, 2001.
He is also the inventor of one of the most important
factorization methods - the quadratic sieve.

Reception at 8:00pm on the 2rd floor deck overlooking the fountain.