Arthur L. Rubin is an American mathematician who has earned a place among the five top-ranked undergraduate competitors (who are themselves not ranked against each other) in the William Lowell Putnam Competition four times (1970–73), a feat matched by only six other undergraduate students since the first competition in 1938. His mother was J. E. H. Rubin, Professor of Mathematics at Purdue University for over 35 years, and his father, H. Rubin, … Wikipedia
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