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    • Canonical form for H-symplectic matrices 

      Groenewald, G.J.; Janse van Rensburg, D.B.; Ran, A.C.M. (Springer, 2018)
      In this paper we consider pairs of matrices (A,H), with A and H either both real or both complex, H is invertible and skew-symmetric and A is H -symplectic, that is, ATH A = H. A canonical form for such pairs is derived ...
    • 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), ...