Modifying the Split-Step $θ$-Method with Harmonic-Mean Term for Stochastic Differential Equations

Modifying the Split-Step $θ$-Method with Harmonic-Mean Term for Stochastic Differential Equations

Year:    2020

Author:    Kazem Nouri, Hassan Ranjbar, Juan Carlos Cortés López

International Journal of Numerical Analysis and Modeling, Vol. 17 (2020), Iss. 5 : pp. 662–678

Abstract

In this paper, we design a class of general split-step methods for solving Itô stochastic differential systems, in which the drift or deterministic increment function can be taken from special ordinary differential equations solver, based on the harmonic-mean. This method is justified to have a strong convergence order of $\frac{1}{2}$. Further, we investigate mean-square stability of the proposed method for linear scalar stochastic differential equation. Finally, some examples are included to demonstrate the validity and efficiency of the introduced scheme.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2020-IJNAM-17874

International Journal of Numerical Analysis and Modeling, Vol. 17 (2020), Iss. 5 : pp. 662–678

Published online:    2020-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    17

Keywords:    Itô stochastic differential system split-step method ODE solver harmonic-mean strong convergence mean-square stability.

Author Details

Kazem Nouri

Hassan Ranjbar

Juan Carlos Cortés López