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A Characterization of Approximately Controllable Linear Stochastic Differential Equations
[chapter]
2005
Lecture Notes in Pure and Applied Mathematics
The aim of this paper is to give two characterizations of approximate controllability of a controlled linear stochastic differential equation. The first characterization can be formulated by saying that an ad hoc backward stochastic differential equation has only one solution which is constant equal to zero. The second criterion for approximate controllability -which is the main result of the present Note -says that the only invariant (or viable) set contained in a suitable linear space is the
doi:10.1201/9781420028720.ch6
fatcat:iws2l2433rdjlff2xi654bym6u