1/ Short proof that complex normal matrics (A A* = A* A) are diagonalizable
8/ Key ideas: AA*=A*A implies A's row lengths = col lengths; work in a basis including an e-vector of A; conclude A is block-diag; recurse
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1/ Short proof that complex normal matrics (A A* = A* A) are diagonalizable
8/ Key ideas: AA*=A*A implies A's row lengths = col lengths; work in a basis including an e-vector of A; conclude A is block-diag; recurse
