Abstract
This paper adopts a highly effective numerical approach for approximating non-linear stochastic Volterra integral equations (NLSVIEs) based on the operational matrices of the Walsh function and the collocation method. The method transforms the integral equation into a system of algebraic equations, which allows for the derivation of an approximate solution. Error analysis is performed, confirming the effectiveness of the proposed method, which results in a linear order of convergence. Numerical examples are provided to illustrate the precision and effectiveness of the proposed method.
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Paikaray, P.P., Parida, N.C., Beuria, S. et al. Numerical approximation of nonlinear stochastic Volterra integral equation based on Walsh function. SeMA (2023). https://doi.org/10.1007/s40324-023-00341-5
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DOI: https://doi.org/10.1007/s40324-023-00341-5
Keywords
- Non-linear stochastic Volterra integral equation
- It\(\hat{o}\) integral
- Brownian motion
- Walsh approximation
- Lipschitz condition
- Collocation method