Dr. James Hall, professor of mathematics at Westminster College, recently had his article, "Tilings and Stamps," published in PHILAMATH, a journal of Mathematics Study Unit of the American Topical Association.

"The patterns in which postage stamps of various shapes are arranged in larger sheets and panes illustrate several features of plane tessellations or tilings," Hall said.  "For each example figures are provided showing the actual stamps together with a drawing of the underlying tiling pattern.  This meeting of math and stamp-collecting may offer an appealing connection to a general education student or members of a more general audience."

Hall, who has been with Westminster College since 1984, earned his undergraduate degree from Northern Illinois University, his master's from Harvard University, and his Ph.D. from the University of Wisconsin.  His professional interests include differential equations, teaching with computer technology, and the history of mathematics.  Hall was the 1989 Henderson lecturer at Westminster with the presentation of "Tilings in Science and Art."

For more information, contact Hall at (724) 946-7286 or e-mail jehall@westminster.edu.

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