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Math Help - [SOLVED] Hermitian, Unitary, and Involutory Matrices

  1. #1
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    [SOLVED] Hermitian, Unitary, and Involutory Matrices

    I need to prove three things:

    1) If A is hermitian and unitary, then A is involutory.
    2) If A is hermitian and involutory, then A is unitary.
    and
    3) If A is unitary and involutory, then A is hermitian.

    Thanks for any help.....
    Last edited by be more; November 9th 2009 at 10:27 AM.
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