该文研究算子方程X+A^*X^-tA=Q的正算子解的问题,给出了算子方程X+A^*X^-tA=Q有正算子解的一些必要条件,同时也给出了该算子方程有正算子解的充分必要条件.
In this paper, the necessary conditions for the existence of positive operator solutions of the operator equation X + A^*X^-tA = Q are established. A sufficient and necessary condition for the existence of positive operator solutions for X + A^*X^-tA = Q is also derived.