Ivar Stakgold

Ivar Stakgold (born December 13, 1925) is a Norwegian-born American academic mathematician and bridge player from Newark, Delaware. As the sole author of two books he specialized in boundary value problems (LCSH).

Stakgold was born in Oslo, Norway. He studied applied mathematics at Harvard University and earned the Ph.D. in 1949 with a dissertation under Léon Nicolas Brillouin, The Cauchy Relations In A Molecular Theory of Elasticity. He is professor emeritus of mathematical sciences at the University of Delaware and a researcher at the University of California, San Diego. He is a former president of the Society for Industrial and Applied Mathematics (SIAM).