MathSciNet bibliographic data MR2651848 15A24 (15B48 47A62) Yin, Xiaoyan; Liu, Sanyang Positive definite solutions of the matrix equations $X\pm A^\ast X^{-q}A=Q(q\geq 1)$$X\pm A^\ast X^{-q}A=Q(q\geq 1)$. Comput. Math. Appl. 59 (2010), no. 12, 3727–3739. Article

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