The Humboldt State University
Department of Mathematics

Presents:

# The 44th Harry S. Kieval Lecture**

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## Thursday, November 11, 2004

*8:00
P.M.*

*Natural Resources 101*

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### Jennifer Quinn

Occidental College

“Fabulous Fibonacci Numbers”

Behold, the Fibonacci numbers 0,1,1,2,3,5,8,13,21,34,55,…, a number sequence
which has long fascinated scholars because of its frequent occurrence in art,
architecture, music, magic, and nature. You may have read about them in Dan
Brown’s novel *The DaVinci Code.* The next number of the sequence is generated
by adding the two preceding numbers. This talk will exhibit many natural examples
of Fibonacci numbers while exploring the unusual (and aesthetically pleasing)
patterns of the sequence itself.

****A lecture on some popular and/or broad aspects
of mathematics attractive to undergraduates and the public**

**For More Information go to: **__http://www.humboldt.edu/~mathdept/HarrySKieval/kl.html__

**HSU is an AA/EO institution.**

**Disability accommodations may be available
from event sponsor at 826-5347**

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#### MATHEMATICS DEPARTMENT COLLOQUIUM

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Professor Jennifer J. Quinn

Occidental College

##### Thursday

##### November 11, 2004, 4:00 P.M.

Science B 135

###### Pre-Colloquium Tea

###### Library 56 3:30 P.M.

“Synchronicity: Alternating
Sums, Exclusion, and Determinants”

“One of
my goals is to understand identities involving sums of alternating terms by
finding a correspondence between *odd *and *even* sets. Coincidentally,
a colleague asked me about calculating a particular determinant combinatorially.
When the answer ended up being related to the alternating identities, I was
stunned. So just what is the connection between determinants, alternating sums
and the Principle of Inclusion/Exclusion? Come and find out.”

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In 1987 Dr. Quinn
earned her MS in Pure Mathematics in Chicago from
the University of Illinois and in 1993 received her Ph.D. in Combinatorics from
the University of Wisconsin at Madison. She has been at Occidental College ever since, where she is currently Associate Professor
and Chair of the Math Department. She is the Associate Editor for Mathematics
Magazine and Co-Editor of Math Horizons. She lives in Los Angeles with
her husband and two sons.