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Ezra A. Brown (born January 22, 1944 in Reading, PA) is an American mathematician active in combinatorics, algebraic number theory, elliptic curves, graph theory, expository mathematics and cryptography. He spent most of his career at Virginia Tech where he is now Alumni Distinguished Professor Emeritus of Mathematics.[1]
Brown earned a B.A. at Rice University in 1965.[2] He then studied mathematics at Louisiana State University (LSU), getting an M.S. in 1967 and a Ph.D. in 1969 with the dissertation "Representations of Discriminantal Divisors by Binary Quadratic Forms" under Gordon Pall.[3] He joined Virginia Tech in 1969 becoming Assistant Professor (1969-73), Associate Professor (1973-81), Professor (1981-2005), and Alumni Distinguished Professor of Mathematicsand Distinguished Professor of Mathematics (2005-2017). He retired from Virginia Tech in 2017.[1][4][5]
Brown became interested in elliptic curves while at LSU and this has remained one of his principal areas of research along with quadratic forms and algebraic number theory in general.
In 2020 Brown together with Richard K. Guy published The Unity of Combinatorics, which endeavors to consolidate that field of mathematics.[6]
While at Rice he met his future wife Jo. They have been married now for over 53 years and have two children, Benjamin and Daniel. Brown remained at Virginia Tech until his retirement in 2017.
Brown has a lifelong interest in music. At the age of 16 he taught himself to play the piano (by ear), and in college he acted in several musicals and joined an a cappella chorus. In 1989, he joined the Blacksburg Master Chorale and the chorus of Opera Roanoke. Starting in 2011 he took his love of music and math to MathFest where he an his fellow mathematicians composed new words to old show tunes and even took part in a Gilbert-and-Sullivan Singalong at MathFest 2016 with his "Biscuits of Number Theory" co-editor Art Benjamin.[7]
Brown and his mathematical grandfather, L. E. Dickson, have the same birthday.[8]