Journal
CHAOS SOLITONS & FRACTALS
Volume 158, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chaos.2022.111946
Keywords
Stochastic differential equation; Analytic semigroup; Cosine family of linear operators; Mild solution; Fixed point theory; Faedo-Galerkin technique
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Funding
- University of Delhi
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This paper studies impulsive second-order stochastic differential systems in a separable Hilbert space X. By using projection operators, the given problem is restricted to a finite-dimensional subspace. The existence and convergence of estimated solutions are investigated using the theories of cosine family and fractional powers of a closed linear operator. The existence and convergence of Faedo-Galerkin approximate solutions are also examined. Finally, examples are constructed to demonstrate the effectiveness of the obtained results.
This paper studies impulsive second-order stochastic differential systems in a separable Hilbert space X. By using the projection operators, we restrict the given problem to a finite-dimensional subspace. The existence and convergence of estimated solutions for the considered problem are investigated via the theories of cosine family and fractional powers of a closed linear operator. We also examine the existence and convergence of the Faedo-Galerkin approximate solutions. At last, we are constructed some examples to demonstrate the effectiveness of the obtained results. (c) 2022 Elsevier Ltd. All rights reserved.
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