The Math Major Vol. 3, No. 9

The Math Major

CSU Fresno Mathematics Department

Vol 3. No. 9 (February 19, 1999)

Editor: Dr. Larry Cusick.

Spring 1999 Video Series

There are two videos coming.

Summer Programs for Women in Mathematics

The George Washington University Summer Program for Women in Mathematics `99 is a five week (June 26-July 31, 1999) intensive program for mathematically-talented undergraduate women who are completing their junior year and may be contemplating graduate study in the mathematical science. The goals of this program are to communicate an enthusiasm for mathematics, to develop research skills, to cultivate mathematical self-confidence and independence, and to promote success in graduate school. Sixteen women will be selected. Each will receive travel allowance, campus room and board, and a stipend of $1,250. Application Deadline is March 1, 1999. For further information, contact the co-directors: Murli M. Gupta & E. Arthur Robinson, Jr. or visit their web site .

Spelman and Bryn Mawr Colleges extends a special invitation to women who will be entering graduate study programs in mathematics in the Fall of 1999 to participate in a post-baccalaureate summer enrichment program. The Enhancing Diversity Graduate Education (EDGE) Program will consist of a four-week summer session and an accompanying graduate school mentoring and support network component. The summer program consists of two core courses in analysis and algebra/linear algebra. A set of minicourses in vital areas of mathematical research, short term visitors from academia and industry, guest lectures, graduate student mentors, and problem sessions will round out the summer experience. The deadline for applications is March 1, 1999. For more information and inquiries, visit the program web site .

Job Search

For summer employment, the Internship & Summer Job Fair will be held at the Satellite College Union, on Wednesday, February 24, 1999 from 10 am to 2 pm. More than 60 employers will be represented to meet with and hire students for summer '99.

The CSU Fresno Career Services schedules interview and resume services for students. For more information, visit their office at Joyal Administration, Room 256 or their web site.

A Mathematical Quote

"I had a feeling once about Mathematics--that I saw it all. Depth beyond depth was revealed to me--the Byss and Abyss. I saw--as one might see the transit of Venus or even the Lord Mayor's Show--a quantity passing through infinity and changing its sign from plus to minus. I saw exactly why it happened and why the tergiversation was inevitable but it was after dinner and I let it go."

--Sir Winston Churchill (1874-1965)

Problem Corner

Problem 3.8: At a party, assume that no boy dances with every girl and each girl dances with at least one boy. Prove that there are two couples (girl1, boy1) and (girl2, boy2) which dance whereas boy1 does not dance with girl2 nor does girl1 dance with boy2.

Solution to Problem 3.8: Let b be a boy who dances with a maximal number of girls (i.e., there may be another boy who dances with the same number of girls, but none dances with a greater number). Let g' be a girl with whom b does not dance, and b' a boy with whom g' dances. Among the partners of b, there must be at least one girl g who does not dance with b' (for otherwise b' would have more partners than b). The couples (g, b) and (g', b') solve the problem.

There were only two solutions submitted, and neither one was correct.

New Problem

Problem 3.8: (Due Thursday February 25, 3 p.m.) A child on a pogo stick jumps 1 foot on the first jump, 2 feet on the second jump, 4 feet on the third jump, ..., 2n-1 on the nth jump. Can the child get back to the starting position by a judicious choice of directions?


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