典型文献
GENERAL FULL IMPLICIT STRONG TAYLOR APPROXIMATIONS FOR STIFF STOCHASTIC DIFFERENTIAL EQUATIONS
文献摘要:
In this paper,we present the backward stochastic Taylor expansions for a Ito process,in-cluding backward Ito-Taylor expansions and backward Stratonovich-Taylor expansions.We construct the general full implicit strong Taylor approximations(including Ito-Taylor and Stratonovich-Taylor schemes)with implicitness in both the deterministic and the stochas-tic terms for the stiff stochastic differential equations(SSDE)by employing truncations of backward stochastic Taylor expansions.We demonstrate that these schemes will converge strongly with corresponding order 1,2,3,....Mean-square stability has been investigated for full implicit strong Stratonovich-Taylor scheme with order 2,and it has larger mean-square stability region than the explicit and the semi-implicit strong Stratonovich-Taylor schemes with order 2.We can improve the stability of simulations considerably without too much additional computational effort by using our full implicit schemes.The full implicit strong Taylor schemes allow a larger range of time step sizes than other schemes and are suitable for SSDE with stiffness on both the drift and the diffusion terms.Our numerical experiment show these points.
文献关键词:
中图分类号:
作者姓名:
Kai Liu;Guiding Gu
作者机构:
School of Mathematics,Shanghai University of Finance and Economics,Shanghai 200433,China;College of Science,Hunan University of Technology and Business,Changsha 410205,China
文献出处:
引用格式:
[1]Kai Liu;Guiding Gu-.GENERAL FULL IMPLICIT STRONG TAYLOR APPROXIMATIONS FOR STIFF STOCHASTIC DIFFERENTIAL EQUATIONS)[J].计算数学(英文版),2022(04):541-569
A类:
IMPLICIT,TAYLOR,APPROXIMATIONS,STIFF,STOCHASTIC,DIFFERENTIAL,EQUATIONS,Stratonovich,implicitness
B类:
GENERAL,FULL,STRONG,FOR,In,this,paper,we,present,backward,stochastic,Taylor,expansions,Ito,process,We,construct,general,full,approximations,including,schemes,both,deterministic,terms,differential,equations,SSDE,by,employing,truncations,demonstrate,that,these,will,converge,strongly,corresponding,order,Mean,square,stability,been,investigated,larger,mean,region,than,explicit,semi,can,improve,simulations,considerably,without,too,much,additional,computational,effort,using,our,allow,range,step,sizes,other,suitable,stiffness,drift,diffusion,Our,numerical,experiment,show,points
AB值:
0.424465
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