Stability and Oscillation of θ-methods for Differential Equation with Piecewise Constant Arguments

  • Qi Wang School of Applied Mathematics, Guangdong University of Technology, Guangzhou, China
  • Xueyang Liu School of Mathematics and Statistics, Guangdong University of Technology, Guangzhou, China
Keywords: θ-methods, Stability, Oscillation, Piecewise Constant Arguments

Abstract

This paper studies the numerical properties of θ-methods for the alternately advanced and retarded differential equation u′(t) = au(t)+bu(2[(t+1)/2]). Using two classes of θ-methods, namely the linear θ-method and the one-leg θ-method, the stability regions of numerical methods are determined, and the conditions of oscillation for the θ-methods are derived. Moreover, we give the conditions under which the numerical stability regions contain the analytical stability regions. It is shown that the θ-methods preserve the oscillation of the analytic solution. In addition, the relationships between stability and oscillation are presented. Several numerical examples are given.

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Published
2022-01-17
How to Cite
Wang, Q., & Liu, X. (2022). Stability and Oscillation of θ-methods for Differential Equation with Piecewise Constant Arguments. Journal of Progressive Research in Mathematics, 19(1), 1-16. Retrieved from http://scitecresearch.com/journals/index.php/jprm/article/view/2116
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Articles