H. J. Ryser

Herbert John Ryser (July 28, 1923 July 12, 1985) was a professor of mathematics, widely regarded as one of the major figures in combinatorics in the 20th century.[1][2] He is the namesake of the Bruck–Ryser–Chowla theorem, Ryser's formula for the computation of the permanent of a matrix, and Ryser's conjecture.

Herbert John Ryser
Born(1923-07-28)July 28, 1923
DiedJuly 12, 1985(1985-07-12) (aged 61)
Alma materUniversity of Toronto
Scientific career
FieldsMathematics
InstitutionsUniversity of WisconsinMadison

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