J4 ›› 2012, Vol. 50 ›› Issue (05): 965-968.

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Twist Periodic Solution of Damped Singular Differential Equations

DING Jinhong   

  1. Department of Mathematics, College of Science, Hohai University, Nanjing 210098, China
  • Received:2011-11-23 Online:2012-09-26 Published:2012-09-29
  • Contact: DING Jinhong E-mail:guantangding@163.com

Abstract:

Using the formula of the first twist coefficient for Newtonian equations and the thirdorder approximation method, we studied the Lyapunov stability of periodic solutions for a nonlinear damped singular differential equations. Moreover, we presented a sufficient condition for the nonlinear damped singular differential equation.

Key words: Lyapunov stability, periodic solution, twist coefficient, thirdorder approximation, singular differential equations

CLC Number: 

  • O175.1