Abstract
The nonlinear Schrödinger's equation, which describes the electron (Langmuir) waves in plasmas, is studied in this paper in the presence of perturbation terms. The method of multiple-scale analysis is employed to perform this study. The perturbation terms that are considered here are both local and non-local.
Acknowledgements
This research work was fully supported by NSF-CREST Grant No. HRD-0630388, and the support is very sincerely and genuinely appreciated.