Jacques Hadamard
…Hadamard c. 1950 Born 8 December 1865 Versailles, France Died 17 October 1963 (aged 97) Paris, France Education École Normale Supérieure Known for Hadamard product Proof of prime number theorem Hadamard matrices Hadamard's maximal determinant problem Awards Grand Prix des Sciences Mathématiques (1892) Prix Poncelet…