Authors: A Jentzen P E Kloeden A Neuenkirch
Publish Date: 2008/11/27
Volume: 112, Issue: 1, Pages: 41-64
Abstract
We study the approximation of stochastic differential equations on domains For this we introduce modified Itô–Taylor schemes which preserve approximately the boundary domain of the equation under consideration Assuming the existence of a unique nonexploding solution we show that the modified Itô–Taylor scheme of order γ has pathwise convergence order γ − ε for arbitrary ε 0 as long as the coefficients of the equation are sufficiently differentiable In particular no global Lipschitz conditions for the coefficients and their derivatives are required This applies for example to the so called square root diffusions
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