吉林大学学报(理学版) ›› 2020, Vol. 58 ›› Issue (1): 35-40.

• 数学 • 上一篇    下一篇

求解一类随机Hamilton系统的分裂算法

李鑫宇1, 陈旭梅2, 岳华1   

  1. 1. 吉林大学 数学学院, 长春 130012; 2. 江苏大学 理学院, 江苏 镇江 212013
  • 收稿日期:2019-05-15 出版日期:2020-01-26 发布日期:2020-01-12
  • 通讯作者: 陈旭梅 E-mail:chenxumei@ujs.edu.cn

Splitting Algorithm for Solving a Class ofStochastic Hamiltonian Systems

LI Xinyu1, CHEN Xumei2, YUE Hua1   

  1. 1. College of Mathematics, Jilin University, Changchun 130012, China;
    2. Faculty of Science, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China
  • Received:2019-05-15 Online:2020-01-26 Published:2020-01-12
  • Contact: CHEN Xumei E-mail:chenxumei@ujs.edu.cn

摘要: 应用一种对称的分裂算法, 把2n维Stratonovich型随机Hamilton系统的求解分解为两个n维子系统的依次求解, 从而达到降维和简化运算的目的. 通过误差分析, 得到了该方法在均方意义下的整体一阶收敛性. 数值算例验证了理论结果的正确性.

关键词: 随机Hamilton系统, Stratonovich型随机微分方程, 分裂算法, 误差估计

Abstract: We applied a symmetrical splitting algorithm to decompose the solution of a 2ndimensional Stratonovichtype stochastic Hamiltonian system into two ndimensional subsystems in turn, so as to reduce the dimension and simplify the computation. We obtained the global mean square first order convergence of this method by error analysis. The numerical examples verify the correctness of the theoretical results.

Key words: stochatic Hamiltonian system, Stratonovichtype stochastic differential equation, splitting algorithm, error estimate

中图分类号: 

  • O241.8