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An analysis of higher order terms for ion-acoustic waves by use of the modified Poincaré-Lighthill-Kuo method

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  • Hilmi Demiray

    (Isik University)

Abstract

In this work, by utilizing the modified Poincaré-Lighthill-Kuo (PLK) method, we studied the propagation of weakly nonlinear waves in a collisionless cold plasma and obtained the governing evolution equations of various order terms in the perturbation expansion. Seeking a progressive wave solution to these evolution equations we obtained the speed correction terms so as to remove some possible secularities. The result obtained here is exactly the same with those of the modified reductive perturbation and re-normalization methods. The method presented here is quite simple and based on introducing a new set of stretched coordinates.

Suggested Citation

  • Hilmi Demiray, 2015. "An analysis of higher order terms for ion-acoustic waves by use of the modified Poincaré-Lighthill-Kuo method," Indian Journal of Pure and Applied Mathematics, Springer, vol. 46(5), pages 669-678, October.
    • Handle: RePEc:spr:indpam:v:46:y:2015:i:5:d:10.1007_s13226-015-0131-x
    DOI: 10.1007/s13226-015-0131-x
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