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 Volume 10, Number 2, 2020, Pages 530-568 Stepanov-like pseudo almost periodic solutions for impulsive perturbed partial stochastic differential equations and its optimal control Zuomao Yan,Xiumei Jia Keywords:Impulsive stochastic perturbed partial differential equations, Ste-panov-like pseudo almost periodic solutions, optimal controls, fractional power operators, fixed point. Abstract: This paper is mainly concerned with the Stepanov-like pseudo almost periodicity to a class of impulsive perturbed partial stochastic differential equations. Firstly, we prove the existence of $p$-mean piecewise Stepanov-like pseudo almost periodic mild solutions for the impulsive stochastic dynamical system in a Hilbert space under non-Lipschitz conditions. The results are obtained by using the fixed point techniques with fractional power arguments. Then the existence of optimal pairs of system governed by impulsive partial stochastic differential equations is also obtained. Finally, an example is provided to illustrate the developed theory. PDF      Download reader