Colm Mulcahy

Colm Mulcahy (Born September 1958) is an Irish mathematician, academic, columnist, book author, public outreach speaker, and amateur magician, long on the faculty of Spelman College. In addition to algebra, number theory, and geometry, his interests include mathemagical card magic and the culture of mathematics–particularly the contributions of Irish mathematicians and also the works of iconic mathematics writer Martin Gardner. He is a frequent blogger for The Huffington Post, Scientific American, and an aperiodical blogger for The Aperiodical; his puzzles have been featured in The New York Times. Mulcahy serves on the Advisory Council of the Museum of Mathematics in New York City. He is currently Vice President of Gathering 4 Gardner, Inc.

Mulcahy got his B.Sc. and M.Sc. in mathematical science at University College Dublin in 1978 and 1979, and a Ph.D. from Cornell University in 1985 where his advisor was Alex F. T. W. Rosenberg. Since 1988 he has been teaching at Spelman College, in Atlanta, Georgia where he is currently professor. He served as chair of the department of mathematics at Spelman from 2003 to 2006 and recently created the Archive of Spelman Mathematicians. In 1997 he received the MAA’s Allendoerfer Award for excellence in expository writing for a paper on the basics of wavelet image compression. In 2014 he was one of the organizers of Mathematics Awareness Month. An article he co-authored, on the centennial of Martin Gardner, was featured in the book, The Best Writing on Mathematics 2015.

Mulcahy has an Erdös number is 2 as a result of a collaboration with Neil Calkin.

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