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    • A canonical form for H-unitary matrices 

      Groenewald, G.J.; Janse van Rensburg, D.B.; Ran, A.C.M. (Ele-Math, 2016)
      In this paper matrices A are considered that have the property that A∗HA = H ,where H = H∗ is invertible. A canonical form is given for the pair of matrices (A,H) under transformations (A,H) → ( S−1AS,S∗HS), ...