Charles Auguste Briot

Charles Auguste Briot ( born July 19, 1817 in Saint- Hippolyte (Doubs ), Franche -Comté, † September 20, 1882 in Bourg- d'Ault ) was a French mathematician who worked on function theory.

Life

Briot warder son of a merchant in the tanning industry. After an accident in his childhood, he had a stiff arm and focused his inclinations according to mathematics, along with his school friend Jean -Claude bouquet, which he was but two years ahead. In 1837 he received his degree and taught a year before he took part in the examinations for the École Normale Supérieure (ENS ) in Paris, which he passed as the second. He received his degree ( Agrégation ) he made in 1841 as the first. In 1842 he received his doctorate, and in the same year his friend bouqet. He then worked as a secondary school in Orléans, before accepting a position at the University of Lyon, as well as his friend bouquet, with whom he worked closely from then on. In 1851 he went to Paris, where he taught at high schools, but also gave courses at the École polytechnique (on which he was preparing his students in special classes at secondary schools ) and the Faculty of Sciences. From 1864 he was professor at the Sorbonne and at the École normale supérieure (Paris).

Work

Briot was known in France in the 19th century by numerous textbooks, often written together with bouquet. He worked on elliptic functions ( Recherches sur la théorie des fonctions, 1859) and - inspired by the friends of his Louis Pasteur - on theoretical physics (ether theories of light in Essai sur la théorie mathématique de la lumière 1864, Thermodynamics in Théorie mécanique de la chaleur 1869). In 1859 he published Théorie des fonctions with Briot double ment périodiques ( Mallet- Bachelier ) and 1875 Théorie des fonctions elliptiques ( Gauthier -Villars ), both widely used textbooks on elliptic functions, often only briefly as " Briot - Bouquet" known.

Awards

In 1882 he was awarded the Poncelet Prize of the French Academy of Sciences.