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Mathematician

Camille Jordan

Also Known As Marie Ennemond Camille Jordan
Modern

Marie Ennemond Camille Jordan was a French mathematician known for his foundational work in group theory and for bringing Galois theory into mainstream mathematics through his 1870 treatise Traite des substitutions. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Birth Date
1838-01-05 1
Birth Year
1838 1
Death Date
1922-01-22 1
Death Year
1922 1
Birthplace
La Croix-Rousse, Lyon, France 1
Death Place
Paris, France 1
Nationality / Culture
French 1
Defining Contribution
Jordan proved in 1861 that the theorem bearing Lagrange's name, that a subgroup's order divides its group's order, holds for all permutation groups, generalizing the special case Lagrange had stated. 2
Notable Work
Proved the Jordan curve theorem and made foundational contributions to group theory (the Jordan-Holder theorem). 1
Award
Poncelet Prize (1870); elected to the Academie des Sciences (1881); Officer of the Legion d'Honneur (1890); Foreign Member of the Royal Society (1919). 1
Biography
Gender
Male 1
Connections

Proofs Credited

Jordan Curve Theorem, Theorems
Jordan Normal Form Theorem, Theorems
Jordan-Holder Theorem, Theorems
Lagrange's Theorem (Group Theory), Theorems

Jordan proved the theorem for all permutation groups in 1861, generalizing Lagrange's original special case.

Source Lagrange's Theorem, Group Theory (Wikipedia)
In the Other Atlases
  • Also in Geography Atlas: France, nationality there.
Sources
1. Camille Jordan (Wikipedia)
Wikimedia Foundation
  • lead paragraph
    was a French mathematician, known both for his foundational work in group theory
  • infobox
    French mathematician
  • opening biographical line
    Marie Ennemond Camille Jordan ... was a French mathematician
  • opening/summary section
    He was an engineer by profession; later in life he taught at the Ecole polytechnique and the College de France
  • honors/awards section
    The asteroid 25593 Camillejordan and the Institut Camille Jordan are named in his honour.
  • Lead section, gender reference
    Marie Ennemond Camille Jordan was a French mathematician, known both for his foundational work in group theory and for his textbook Cours d'analyse de l'Ecole polytechnique.
View the Source
2. Lagrange's Theorem, Group Theory (Wikipedia)
Wikimedia FoundationHistory section
Quote, History section
the generalization to abstract groups came later through the work of Gauss (1801), Cauchy (1844), and finally Camille Jordan (1861), who proved it for all permutation groups
View the Source

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