Jordan decomposition

In mathematics, Jordan decomposition may refer to


 * Hahn decomposition theorem, and the Jordan decomposition of a measure
 * Jordan normal form of a matrix
 * Jordan–Chevalley decomposition of a matrix
 * Deligne–Lusztig theory, and its Jordan decomposition of a character of a finite group of Lie type
 * The Jordan–Hölder theorem, about decompositions of finite groups.