Chaos in cubic-quintic nonlinear oscillator

Subject Applied Mathematics
Title Chaos in cubic-quintic nonlinear oscillator
Author(s) Patanjali Sharma and V. G. Gupta
Keywords Lie transformation, Poincare map, chaos, nonlinear oscillator
Abstract

In this paper, we used Hamiltonian formulation and Lie transform to investigate a strongly nonlinear oscillator. Using Chirikovs overlap criterion we fi nd the value of $ \varepsilon_{cr}$ at which the chaos loses its local character and becomes global. The results of Lie transformation analysis and Chirikovs criteria for the oscillator are compared with numerically generated Poincare Maps.