Abstract:A short and really elementary proof is given for the existence of a Jordan canonical form of any matrix with elements in an algebraically closed field. The proof is by induction and explicit calculation and needs as prerequisite the notion of factor space.Zu jeder quadratischen Matrix A mit Elementen aus einem beliebigen (kommutativen) Körper K gibt es die Jordan-Normalform J von A, wenn man im algebraischen Abschluû von K rechnet. J ist durch A (bis auf die Reihenfolge der Jordan-Kästchen) eindeutig bestimmt … Show more
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