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Analytical Approximate Solutions Of Nonlinear Oscillators By The Modified Decomposition Method

Author

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  • SHAHER MOMANI

    (Department of Mathematics, Faculty of Sciences, Mutah University, P. O. Box 7, Mutah, Jordan)

Abstract

Analytical approximate solutions for the nonlinear oscillators of the form$\ddot x +c_1 x =\varepsilon f (x, \dot x)$are derived using the modified decomposition method. The analytical solutions of our model equations are calculated in the form of convergent series with easily computable components. Then the Laplace transformation and Padè approximant are effectively used to improve the convergence rate and accuracy of the computed series. The validity of the solutions is verified through some numerical examples. The results compare well with those obtained by the Runge–Kutta fourth-order method. The proposed scheme avoids the complexity provided by perturbation techniques.

Suggested Citation

  • Shaher Momani, 2004. "Analytical Approximate Solutions Of Nonlinear Oscillators By The Modified Decomposition Method," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 15(07), pages 967-979.
    • Handle: RePEc:wsi:ijmpcx:v:15:y:2004:i:07:n:s0129183104006388
    DOI: 10.1142/S0129183104006388
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