$m$th roots of $H$-selfadjoint matrices

13 Oct 2020  ·  Groenewald G. J., van Rensburg D. B. Janse, Ran A. C. M., Theron F., van Straaten M. ·

In this paper necessary and sufficient conditions are given for the existence of an $H$-selfadjoint $m$th root of a given $H$-selfadjoint matrix. A construction is given of such an $H$-selfadjoint $m$th root when it does exist...

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