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Chapter 14: Nonnormal Matrices

      https://doi.org/10.1142/9789813143807_0014Cited by:0 (Source: Crossref)
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      Abstract:

      A square matrix M over ℂ is called normal if

      MM* = M*M.

      A square matrix M over ℂ is called nonnormal if

      MM* ≠ M*M.

      Examples of normal matrices are: hermitian, skew-hermitian, unitary, projection matrices. Examples for nonnormal matrices are