The additive approximation on a four-variate Jensen-type operator equation.
The Hilbert projective metric and an equation in a -algebra
The operator equation AX - XB = C with unbounded operators A and B and related abstract Cauchy problems.
Topological dual of with application to stochastic systems on Hilbert space
In this paper, we prove that the topological dual of the Banach space of bounded measurable functions with values in the space of nuclear operators, furnished with the natural topology, is isometrically isomorphic to the space of finitely additive linear operator-valued measures having bounded variation in a Banach space containing the space of bounded linear operators. This is then applied to a stochastic structural control problem. An optimal operator-valued measure, considered as the structural...