
In this paper, the writers consider the question of the factorization of an operator \(T\in B(H)\) into the product of two positive operators \(A\) and \(X\), i.e., \(T=AX\). Their results are then linked to the solvability of the operator equations \(T=XAX\) and \(TX=XAX\).
General (adjoints, conjugates, products, inverses, domains, ranges, etc.), projection, operator equation, Positive linear operators and order-bounded operators, positive operator, Equations involving linear operators, with operator unknowns, Moore-Penrose inverse
General (adjoints, conjugates, products, inverses, domains, ranges, etc.), projection, operator equation, Positive linear operators and order-bounded operators, positive operator, Equations involving linear operators, with operator unknowns, Moore-Penrose inverse
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