Dickson, Leonard Eugene, 1874–1954, American mathematician, b. Independence, Iowa, grad. Univ. of Texas, 1893. He studied in Leipzig and Paris and joined the staff of the Univ. of Chicago in 1900. A leading American algebraist, he wrote on invariants and the theory of finite and infinite groups. His chief work is A History of the Theory of Numbers (3 vol., 1919–23, repr. 1966).
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