The Humboldt State University Department of Mathematics


The 44th Harry S. Kieval Lecture**


Thursday, November 11, 2004

8:00 P.M.

Natural Resources 101

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 Browns 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:

HSU is an AA/EO institution.

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



Professor Jennifer J. Quinn

Occidental College

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.

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.