Mathematician:Elwin Bruno Christoffel

Mathematician
German mathematician and physicist. He introduced fundamental concepts of differential geometry, opening the way for the development of tensor calculus, which would later provide the mathematical basis for general relativity.

Nationality
German

History

 * Born: 10 November 1829 in Montjoie Aachen (now Monschau), Germany
 * Died: 15 March 1900 in Strasbourg, France

Theorems and Definitions

 * Riemann-Christoffel Tensor (with ), also known as Riemannian Curvature Tensor