(a) Write down the inverses of each of the 3 3 permutation matrices (1.30). (b) Which...

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(a) Write down the inverses of each of the 3 × 3 permutation matrices (1.30).
(b) Which ones are their own inverses, P-1 = P?
(c) Can you find a non-elementary permutation matrix P which is its own inverse: P-1 = P?
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Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

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