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Mathematik-Online problems:

Problem 49: Relationship Determinant and Inverse

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Proof: The inverse of an $ n\times n$-matrix $ B$ with integral entries has integral entries too, if and only if $ {\mathrm{det}}(B)=1$ or $ {\mathrm{det}}(B)=-1$.

(Authors: Kimmerle/Roggenkamp/Höfert)

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[Solutions]
  automatisch erstellt am 14. 10. 2004