Mathematician:William Henry Young

English mathematician, who worked on measure theory, Fourier series, differential calculus amongst other fields.

Made brilliant and long-lasting contributions to the study of functions of several complex variables.

Nationality
English

History

 * Born: 20 Oct 1863, London, England
 * 1896: Married Grace Emily Chisholm
 * Died: 7 July 1942, Lausanne, Switzerland

Theorems and Definitions

 * Young's Inequality for Products
 * Reverse Young's Inequality for Products
 * Young's Inequality for Convolutions
 * Young's Inequality for Increasing Functions
 * Hausdorff-Young Inequality (with Felix Hausdorff)

Books and Papers

 * 1905: The First Book of Geometry (with Grace Chisholm Young)
 * 1906: The Theory of Sets of Points
 * 1910: The Fundamental Theorems of the Differential Calculus