Applied Mathematics and Mechanics (English Edition) ›› 1989, Vol. 10 ›› Issue (10): 915-924.

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DEFECT AND IMPROVEMENT OF TWO-TIME EXPANSION METHOD IN NONLINEAR OSCILLATIONS

Cheng Shui-li, Tan Zhi-min   

  1. Zhangshan University, Guangzhou
  • Received:1985-02-04 Online:1989-10-18 Published:1989-10-18

Abstract: In this paper, the defect of the Two-Time Expansion method is indicated and an improvement of this method is suggested. Certain examples.in which the present method is used, are given. Moreover, the paper shows the equivalence of the improved Two-Time Expansion Method and the method of KBM(Kryloy-Bogoliuboy-Mitropolski).

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