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On the boundedness of asymptotic stability regions for the stochastic theta method

Bryden, A. and Higham, D.J. (2003) On the boundedness of asymptotic stability regions for the stochastic theta method. BIT Numerical Mathematics, 43 (1). pp. 1-7. ISSN 0006-3835

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Abstract

The stochastic theta method gives a computational procedure for simulating ordinary stochastic differential equations. The method involves a free parameter, THgr. Here, we characterise the precise value of THgr beyond which the region of linear asymptotic stability of the method becomes unbounded. The cutoff point is seen to differ from that in the deterministic case. Computations that suggest further results are also given.