Camille Jordan

For the French politician, see Camille Jordan (politician).
Camille Jordan
Born (1838-01-05)5 January 1838
Died 22 January 1922(1922-01-22) (aged 84)
Nationality French
Fields Mathematics
Alma mater École polytechnique
Academic advisors Victor Puiseux and Joseph Alfred Serret
Known for Jordan curve theorem
Jordan normal form
Jordan matrix
Jordan measure

Marie Ennemond Camille Jordan (French: [ʒɔʀdan]; 5 January 1838 – 22 January 1922) was a French mathematician, known both for his foundational work in group theory and for his influential Cours d'analyse.


Jordan was born in Lyon and educated at the École polytechnique. He was an engineer by profession; later in life he taught at the École polytechnique and the Collège de France, where he had a reputation for eccentric choices of notation.

He is remembered now by name in a number of foundational results:

Jordan's work did much to bring Galois theory into the mainstream. He also investigated the Mathieu groups, the first examples of sporadic groups. His Traité des substitutions, on permutation groups, was published in 1870; this treatise won for Jordan the 1870 prix Poncelet.[1]

The asteroid 25593 Camillejordan and Institut Camille Jordan are named in his honour.

Camille Jordan is not to be confused with the geodesist Wilhelm Jordan (Gauss–Jordan elimination) or the physicist Pascual Jordan (Jordan algebras).


See also


  1. "Prix". Comptes rendus hebdomadaires des séances de l'Académie des sciences. Tome 75, Juillet à Décembre 1872. Paris: Gauthier-Villars. 1872. p. 1302.
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