mth roots of H-selfadjoint matrices
G. J. Groenewald, D.B. Janse van Rensburg, André C. M. Ran, Frieda Theron, M. van Straaten · Linear Algebra and its Applications · 2020
In this paper necessary and sufficient conditions are given for the existence of an H-selfadjoint mth root of a given H-selfadjoint matrix. A construction is given of such an H-selfadjoint mth root when it does exist.