Mathematician:Jean-Gaston Darboux

French mathematician who contributed to to geometry and mathematical analysis.

Did considerable important work on linear partial differential equations.

Nationality
French

History

 * Born: 14 Aug 1842 in Nimes, Gard, Languedoc, France
 * 1866: Received Ph.D. from the École Normale Supérieure
 * 1884: Elected to the Académie des Sciences
 * 1900: Appointed the Academy's permanent secretary of its Mathematics section
 * Died: 23 Feb 1917 in Paris, France

Theorems and Definitions

 * Darboux Equation
 * Darboux Frame
 * Darboux Function
 * Darboux Integral
 * Darboux Net Invariants
 * Darboux Problem
 * Darboux's Theorem (Symplectic Geometry)
 * Darboux's Theorem (Analysis), related to Intermediate Value Theorem
 * Christoffel-Darboux Identity (with Elwin Bruno Christoffel)
 * Christoffel-Darboux Formula (with Elwin Bruno Christoffel)
 * Darboux's Formula
 * Darboux Vector
 * Euler-Darboux Equation (with Leonhard Paul Euler)
 * Euler-Poisson-Darboux Equation (with Leonhard Paul Euler and Siméon-Denis Poisson)
 * Darboux Cubic
 * Darboux Problem (also known as a Goursat problem for Édouard Jean-Baptiste Goursat)
 * Darboux Transformation

Books and Papers

 * 1866: Sur les Surfaces Orthogonales
 * 1896: Leçons sur la Théorie Général des Surfaces et les Applications Géométriques du Calcul Infinitésimal (4 volumes)