Augustin-Louis Cauchy

Baron Augustin-Louis Cauchy FRS FRSE (/kˈʃ/, koh-SHEE;[1] French: [oɡystɛ̃ lwi koʃi]; 21 August 1789  23 May 1857) was a French mathematician, engineer, and physicist who made pioneering contributions to several branches of mathematics, including mathematical analysis and continuum mechanics. He was one of the first to state and rigorously prove theorems of calculus, rejecting the heuristic principle of the generality of algebra of earlier authors. He almost singlehandedly founded complex analysis and the study of permutation groups in abstract algebra.

Augustin-Louis Cauchy
Cauchy around 1840. Lithography by Zéphirin Belliard after a painting by Jean Roller.
Born(1789-08-21)21 August 1789
Died23 May 1857(1857-05-23) (aged 67)
Alma materÉcole Nationale des Ponts et Chaussées
Known forContinuum mechanics
Mathematical analysis
Gradient descent
Implicit function theorem
Intermediate value theorem
Spectral theorem
Limit (mathematics)
See full list
SpouseAloise de Bure
ChildrenMarie Françoise Alicia, Marie Mathilde
AwardsGrand Prize of L'Académie Royale des Sciences
Scientific career
FieldsMathematics, Physics
InstitutionsÉcole Centrale du Panthéon
École Nationale des Ponts et Chaussées
École Polytechnique
Doctoral studentsFrancesco Faà di Bruno
Viktor Bunyakovsky

A profound mathematician, Cauchy had a great influence over his contemporaries and successors;[2] Hans Freudenthal stated: "More concepts and theorems have been named for Cauchy than for any other mathematician (in elasticity alone there are sixteen concepts and theorems named for Cauchy)."[3] Cauchy was a prolific writer; he wrote approximately eight hundred research articles and five complete textbooks on a variety of topics in the fields of mathematics and mathematical physics.

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