Stability and oscillations of numerical solutions for differential equations with piecewise continuous arguments of alternately advanced and retarded type

  • Authors:
  • Qi Wang;Qingyong Zhu;Mingzhu Liu

  • Affiliations:
  • Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, 518055, PR China and Faculty of Applied Mathematics, Guangdong University of Technology, Guangzhou, 510006, PR China;Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, 518055, PR China and Department of Applied Mechanics and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China;Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen, 518055, PR China

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2011

Quantified Score

Hi-index 7.29

Visualization

Abstract

This paper is concerned with the numerical properties of @q-methods for the solution of alternately advanced and retarded differential equations with piecewise continuous arguments. Using two @q-methods, namely the one-leg @q-method and the linear @q-method, the necessary and sufficient conditions under which the analytic stability region is contained in the numerical stability region are obtained, and the conditions of oscillations for the @q-methods are also obtained. It is proved that oscillations of the analytic solution are preserved by the @q-methods. Furthermore, the relationships between stability and oscillations are revealed. Some numerical experiments are presented to illustrate our results.