We establish results concerning the approximate controllability for
time-dependent impulsive neutral stochastic partial differential equations
with memory in Hilbert spaces. By using semigroup theory, stochastic
analysis techniques and fixed point approach, we derive a new set of
sufficient conditions for the approximate controllability of nonlinear
stochastic system under the assumption that the corresponding linear system
is approximately controllable. Further, the above results are generalized to
cover a class of much more general impulsive neutral stochastic delay
partial differential equations driven by L?vy noise in infinite dimensions.
Finally, an example is provided to illustrate our results.
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