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What are the operator norm (13., the matrix norm induced by the Egg-norm), the Frobenius norm, and the nuclear norm of a unitary matrix? For

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What are the operator norm (13., the matrix norm induced by the Egg-norm), the Frobenius norm, and the nuclear norm of a unitary matrix? For a self-adjoint matrix A c Cox", prove that the sets of singular values of A and the set of absolute values of eigenvalues of A are identical.

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