Title of article :
Compensated stochastic theta methods for stochastic differential equations with jumps
Author/Authors :
Wang، نويسنده , , Xiaojie and Gan، نويسنده , , Siqing، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
In this paper, a family of compensated stochastic theta methods (CSTM), as opposed to stochastic theta methods (STM) are proposed after the introduction of a compensated Poisson process. These methods are justified to have a strong convergence order of 1/2. Further we investigate mean-square stability of the proposed methods. For a linear test equation, we show that an extension of the deterministic A-stability property holds for CSTM, if and only if 1 / 2 ⩽ θ ⩽ 1 . For a general nonlinear problem, of which the drift term f has a negative one-sided Lipschitz constant and the diffusion terms g , h satisfy global Lipschitz condition, we find that backward Euler method (STM with θ = 1 ) preserves stability under a stepsize constraint, while compensated backward Euler method (CSTM with θ = 1 ) gives a generalization of the deterministic B-stability. Those stability results indicate that CSTM achieve superiority over STM in terms of stability.
Keywords :
Stochastic theta methods , Strong convergence , A-stability , Jump-diffusion , Compensated Poisson process , Exponential mean-square stability , B-stability
Journal title :
Applied Numerical Mathematics
Journal title :
Applied Numerical Mathematics