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Mean Exit Time and Escape Probability for Dynamical Systems Driven by Lévy Noises
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Mean Exit Time and Escape Probability for Dynamical Systems Driven by Lévy Noises
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Journal Article
Mean Exit Time and Escape Probability for Dynamical Systems Driven by Lévy Noises
2014
Overview
The mean first exit time and escape probability are utilized to quantify dynamical behaviors of stochastic differential equations with non-Gaussian $\\alpha$-stable type Levy motions. An efficient and accurate numerical scheme is developed and validated for computing the mean exit time and escape probability from the governing differential-integral equation. An asymptotic solution for the mean exit time is given when the pure jump measure in the Levy motion is small. From both the analytical and numerical results, it is observed that the mean exit time depends strongly on the domain size and the value of $\\alpha$ in the $\\alpha$-stable Levy jump measure. The mean exit time and escape probability could become discontinuous at the boundary of the domain, when the value of $\\alpha$ is in (0,1). [PUBLICATION ABSTRACT]
Publisher
Society for Industrial and Applied Mathematics
