let , show that
Last edited by Mauritzvdworm; Jul 14th 2010 at 12:38 AM.
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Originally Posted by Mauritzvdworm let , show that The proof consists of two steps. (1) ; (2) A*A is a positive definite matrix and so its norm is equal to its largest eigenvalue. Those two steps together show that .
For the last part, use the fact that to deduce that .
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