#### David Austin

David Austin is Professor of Mathematics at Grand Valley State University in Allendale, Michigan and the author of several AMS Feature Columns. His research interests are in differential geometry, computational geometry and mathematical visualization. He received his Ph.D. in 1989 from the University of Utah.

#### George Jennings

George Jennings is Professor of Mathematics at California State University, Dominguez Hills. His research interests are algebraic and differential geometry, applied mathematics, and physics. He is the author of *Modern Geometry with Applications*. He received his Ph.D. in 1984 from UCLA.

#### Kent E. Morrison (chair)

Kent Morrison is a visiting researcher at AIM and is the convener of the AIM Editorial Board. Now an emeritus professor, he taught for more than 30 years at Cal Poly, San Luis Obispo, and was department chair for 9 years. His research interests include combinatorics and game theory. He received his Ph.D. in 1977 from the University of California at Santa Cruz.

#### Vic Reiner

Vic Reiner is Professor of Mathematics at the University of Minnesota. His research interests are in combinatorics and its relations to other areas, such as algebra, topology and geometry. He received his Ph.D. in 1990 from MIT.

#### Katherine Yoshiwara

Katherine Yoshiwara is Professor Emerita of Mathematics at Pierce College in Woodland Hills, California. She is the author or co-author of several mathematics textbooks and has won teaching awards from the MAA and AMATYC. As an undergraduate she studied Greek and mathematics and received an M.A. in mathematics in 1977 from UCLA.