Richard Askey

American mathematician known for his expertise in the area of special functions

Born
4 June 1933, St. Louis
Died
9 October 2019, aged 86
Birth name
Richard Allen Askey
Richard Askey
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Richard Allen Askey (June 4, 1933 – October 9, 2019) was an American mathematician, known for his expertise in the area of special functions. The Askey–Wilson polynomials are on the top level of the (-)Askey scheme, which organizes orthogonal polynomials of (-)hypergeometric type into a hierarchy. The Askey–Gasper inequality for Jacobi polynomials is essential in de Brange's famous proof of the Bieberbach conjecture.

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