J4 ›› 2010, Vol. 45 ›› Issue (6): 74-80.
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TIAN Xue-gang, WANG Shao-ying
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Abstract:
Using the block operator matrix technique and the generalized inverse of operator,the solutions to the operator equation AXB=C are studied in infinite Hilbert space. The sufficient and necessary condition for the existence of solutions to the equation AXB=C and the representation of the solutions are established. Especially when R(A*)R(B) or R(B)R(A*), the sufficient and necessary condition for the existence of positive solutions of the equation AXB=C and the general form of the positive solutions are also derived.
Key words: operator equation; positive operator; Moore-Penrose inverse
TIAN Xue-gang, WANG Shao-ying. Solutions to the operator equation AXB=C[J].J4, 2010, 45(6): 74-80.
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