Camille Jordan
Marie Ennemond Camille Jordan (January 5, 1838 – January 22, 1922) was a French mathematician, known both for his foundational work in group theory and for his influential Cours d'analyse. He 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:
- The Jordan curve theorem, a topological result required in complex analysis
- The Jordan normal form and the Jordan matrix in linear algebra
- In mathematical analysis, Jordan measure (or Jordan content) is an area measure that predates measure theory.
- In group theory the Jordan-Hölder theorem on composition series is a basic result.
- Jordan's theorem on finite linear groups
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.
The asteroid 25593 Camillejordan and Institute of 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).
Read more about Camille Jordan: Books By C. Jordan
Famous quotes containing the words camille and/or jordan:
“The old-fashioned idea that the simple piling up of experiences, one on top of another, can make you an artist, is, of course, so much rubbish. If acting were just a matter of experience, then any busy harlot could make Garbo’s Camille pale.”
—Helen Hayes (1900–1993)
“All of Western tradition, from the late bloom of the British Empire right through the early doom of Vietnam, dictates that you do something spectacular and irreversible whenever you find yourself in or whenever you impose yourself upon a wholly unfamiliar situation belonging to somebody else. Frequently it’s your soul or your honor or your manhood, or democracy itself, at stake.”
—June Jordan (b. 1939)