If u Hu = 1, show that I 2uuH is Hermitian and also unitary. The rank-1 matrix uuH is
Chapter 5, Problem 5.5.45(choose chapter or problem)
If u Hu = 1, show that I 2uuH is Hermitian and also unitary. The rank-1 matrix uuH is the projection onto what line in C n ?
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