中国科学院数学与系统科学研究院期刊网
Sufficient Conditions for the Existence of a Positive Definite Solution of Matrix Equation X-A*X-1A+B*X-2B=I
Xiao Mei CUI, Li Hui TAN, Shi Jia ZHAO
Acta Mathematica Sinica, Chinese Series . 2014, (5): 973 -980 .  DOI: 10.12386/A2014sxxb0090