André Lichnerowicz

André Lichnerowicz (; January 21, 1915, Bourbon-l'Archambault – December 11, 1998, Paris) was a French differential geometer and mathematical physicist. He made pioneering contributions to the theory of the scalar curvature, holonomy groups, Kähler geometry, and the mathematical study of Einstein's equations. He also made contributions to symplectic geometry, and is considered the founder of modern Poisson geometry. Provided by Wikipedia