Jordan, (Marie Ennemond) Camille (1838–1922)
Camille Jordan was a French mathematician who made important contributions to group
theory. He was the first to draw attention to the work of Évariste Galois, which had until then been almost
entirely ignored. He built on Galois's study by grasping the intimate connection
between groups of permutations and the solvability of polynomial equations. Jordan also introduced the idea of an infinite group. He passed
on his interest in group theory to two of his most outstanding pupils, Felix Klein and Sophus Lie,
both of whom went on to develop the subject in new and important ways.