tailieunhanh - THE AMERICAN MATHEMATICAL MONTHLY VOLUME 105

The curriculum vitae of Alice Turner Schafer lists two specializations: abstract algebra (group theory) and women in mathematics. As early as her high school years Alice exhibited a love for mathematics and an interest in teaching as a career. As a mathematics educator she championed the full participation of women in mathematics. She has been a strong role model for many women, and has worked to establish support groups for women in mathematics, to eliminate barriers women face in their study of mathematics and participation in the mathematics community, and to provide opportunity and encouragement for women in mathematics. She was one of the central figures in the. | Mõ AMERICAN MATHEMATICAL NT HLY February 1998 Volume 105 Number 2 Linda R. Sons Russell A. Gordon Susan Bassein Hunter s. Snevily Douglas B. West Craig M. Johnson John c. McConnell Yueh-Gin Gung and Dr. Charles Y. Hu 105 Award for Distinguished Service The Use of Tagged Partitions in 107 Elementary Real Analysis The Dynamics of a Family of One-Dimensional Maps 118 The Bricklayer Problem and the. strong Cycle Lemma 131 A Computer Search for Free Actions on Surfaces 144 154 Division Algebras Beyond the Quaternions NOTES Brian Gerard Lawrence Roberts Philippe Revoy Wolfgang Kuhn Zuzana Kuhn UNSOLVED PROBLEMS Joan Hutchinson Stan Wagon PROBLEMS AND SOLUTIONS REVIEWS Gerald L. Alexanderson Jean Pedersen William Goldman TELEGRAPHIC REVIEWS Graphical Discovery of a New Identity 163 for Jacobi Polynomials The Generalized Level of a Non Prime 167 Finite Field Is Two Cutting High-Dimensional Cakes 168 Kempe Revisited 170 175 Invertible Polyhedron Models. 186 Distributed by Snyder Engineering Topology and Geometry. 192 By Glen E. Bredon 195 AN OFFICIAL PUBLICATION OF THE MATHEMATICAL ASSOCIATION OF AMERICA NOTICE TO AUTHORS The MONTHLY publishes articles as well as notes and other features about mathematics and the profession. Its readers span a broad spectrum of mathematical interests and include professional mathematicians as well as students of mathematics at all collegiate levels. Authors are invited to submit articles and notes that bring interesting mathematical ideas to a wide audience of MONTHLY readers. The MONTHLY S readers expect a high standard of exposition they expect articles to inform stimulate challenge enlighten and even entertain. MONTHLY articles are meant to be read enjoyed and discussed rather than just archived. Articles may be expositions of old or new results historical or biographical essays speculations or definitive treatments broad developments or explorations of a single application. Novelty and generality are far less Important than clarity of .