Abstract
Within the framework of the theory of quaternion row-column determinants previously introduced by the author, we derive determinantal representations (analogs of Cramer's rule) of a solution to the system of two-sided quaternion matrix equations , and its special cases with one one-sided equation when or , where is an identity matrix of appropriate shape. Since the Moore–Penrose inverse is a necessary tool to solve matrix equations, we use determinantal representations of the Moore–Penrose inverse previously obtained by the theory of row-column determinants as well.
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