Tamed Runge-Kutta methods for SDEs with super-linearly growing drift and diffusion coefficients
Tamed Runge-Kutta methods for SDEs with super-linearly growing drift and diffusion coefficients
复制标题
具有超线性增长漂移和扩散系数的 SDE 驯服龙格-库塔方法
DOI:
10.1016/j.apnum.2019.11.014
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发表时间:
2020-06
影响因子:
2.8
通讯作者:
Wang Xiaojie
中科院分区:
文献类型:
--
作者:
Gan Siqing;He Youzi;Wang Xiaojie
Traditional explicit schemes such as the Euler-Maruyama, Milstein and stochastic Runge-Kutta methods, in general, result in strong and weak divergence when solving stochastic differential equations (SDEs) with super-linearly growing coefficients. Motivated by this, various modified versions of explicit Euler and Milstein methods were constructed and analyzed in the literature. In the present paper, we aim to introduce a family of explicit tamed stochastic Runge-Kutta (TSRK) methods for commutative SDEs with super-linearly growing drift and diffusion coefficients. Strong convergence rates of order 1.0 are successfully identified for the proposed methods under certain non-globally Lipschitz conditions. Compared to the Milstein-type methods involved with derivatives of coefficients, the newly proposed derivative-free TSRK methods can be computationally more efficient. Numerical experiments are reported to confirm the expected strong convergence rate of the TSRK methods.
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DOI:
10.1080/17442509408833885
发表时间:
1994-03
期刊:
Stochastics and Stochastics Reports
影响因子:
--
作者:
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通讯作者:
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1998-03
期刊:
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影响因子:
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2008-10
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影响因子:
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通讯作者:
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影响因子:
2.1
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通讯作者:
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DOI:
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发表时间:
2004-07
期刊:
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影响因子:
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作者:
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通讯作者:
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