数学季刊 ›› 2008, Vol. 23 ›› Issue (3): 403-408.

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提高反应—扩散方程有限差分格式的稳定性问题

  

  1. College of Mathematics and Information Science,Henan University

  • 收稿日期:2007-11-19 出版日期:2008-09-30 发布日期:2023-09-22
  • 作者简介: XU Chen-mei(1965- ), female, native of Zhoukou, Henan, a lecturer of Henan University, engages in computational mathematics.

Improving the Stability Problemof the Finite Difference Scheme for Reaction-diffusion Equation

  1. College of Mathematics and Information Science,Henan University
  • Received:2007-11-19 Online:2008-09-30 Published:2023-09-22
  • About author: XU Chen-mei(1965- ), female, native of Zhoukou, Henan, a lecturer of Henan University, engages in computational mathematics.

摘要: This paper deals with the special nonlinear reaction-diffusion equation. The finite difference scheme with incremental unknowns approximating to the differential equa-tion (2.1) is set up by means of introducing incremental unknowns methods. Through the stability analyzing for the scheme, it was shown that the stability conditions of the finite dif-ference schemes with the incremental unknowns are greatly improved when compared with the stability conditions of the corresponding classic difference scheme.

关键词: reaction-diffusion equation, difference scheme, stability problem, incremental
unknowns

Abstract: This paper deals with the special nonlinear reaction-diffusion equation. The finite difference scheme with incremental unknowns approximating to the differential equa-tion (2.1) is set up by means of introducing incremental unknowns methods. Through the stability analyzing for the scheme, it was shown that the stability conditions of the finite dif-ference schemes with the incremental unknowns are greatly improved when compared with the stability conditions of the corresponding classic difference scheme.

Key words: reaction-diffusion equation, difference scheme, stability problem, incremental
unknowns

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