French mathematician, born on the 25th of October 1811, and killed in a duel on the 31st of May 1832. An obituary notice by his friend Auguste Chevalier appeared in the Revue encyclopédique (1832); and his collected works are published, Journal de Liouville (1846), pp. 381–444, about fifty of these pages being occupied by researches on the resolubility of algebraic equations by radicals. This branch of algebra he notably enriched, and to him is also due the notion of a group of substitutions.
His collected works, with an introduction by C. F. Picard, were published in 1897 at Paris.
