Hamiltonian square roots of skew Hamiltonian quaternionic matrices. Rodman, Leiba (2008) ELA. The Electronic Journal of Linear Algebra [electronic only]
Hermitian nonnegative-definite and positive-definite solutions of the matrix equation A X B = C . Zhang, Xian (2004) Applied Mathematics E-Notes [electronic only]
Hypersymmetric functions and Pochhammers of 2 × 2 nonautonomous matrices. Antippa, A.F. (2004) International Journal of Mathematics and Mathematical Sciences