Joseph Gillis

Joseph E. Gillis (; 3 August 1911 – 18 November 1993) was a British-Israeli mathematician and one of the founders of the Faculty of Mathematics at the Weizmann Institute of Science, where he served as a professor of Applied Mathematics. He made notable contributions to fractal sets, fluid dynamics, random walks, and pioneered the combinatorial theory of special functions of mathematical physics.

Career Gillis was born on 3 August 1911 in Sunderland, in the north east of England. He studied at Trinity College, Cambridge, completing his doctoral thesis on "Some Geometrical Properties of Linearly Measurable Plane Sets of Points" under A.S. Besicovitch in 1935. During World War II he worked in Bletchley Park as a cryptographer. He taught maths at Queen's University Belfast between 1937 and 1947.

Personal life He was married to Olga Kirsch and had two daughters. He died on 18 November 1993.