@Article{EAJAM-13-1, author = {Xiaojuan, Wu and Siqing, Gan}, title = {Convergence Rates of Split-Step Theta Methods for SDEs with Non-Globally Lipschitz Diffusion Coefficients}, journal = {East Asian Journal on Applied Mathematics}, year = {2023}, volume = {13}, number = {1}, pages = {59--75}, abstract = {
The present work analyzes the mean-square approximation error of split-step theta methods in a non-globally Lipschitz regime. We show that under a coupled monotonicity condition and polynomial growth conditions, the considered methods with the parameters $θ ∈ [1/2, 1]$ have convergence rate of order $1/2.$ This covers a class of stochastic differential equations with super-linearly growing diffusion coefficients such as the popular $3/2$-model in finance. Numerical examples support the theoretical results.
}, issn = {2079-7370}, doi = {https://doi.org/10.4208/eajam.161121.090722}, url = {https://global-sci.com/article/82408/convergence-rates-of-split-step-theta-methods-for-sdes-with-non-globally-lipschitz-diffusion-coefficients} }