期刊
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
卷 27, 期 7, 页码 1596-1601出版社
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/HFF-06-2016-0252
关键词
Solitons; Chirped solitons; Fokas-Lenells equation; Trial equation method
Purpose - The purpose of this paper is to present a reliable treatment of the Fokas-Lenells equation, an integrable generalization of the nonlinear Schrodinger equation. The authors use a special complex envelope traveling-wave solution to carry out the analysis. The study confirms the accuracy and efficiency of the used method. Design/methodology/approach - The proposed technique, namely, the trial equation method, as presented in this work has been shown to be very efficient for solving nonlinear equations with spatio-temporal dispersion. Findings - A class of chirped soliton-like solutions including bright, dark and kink solitons is derived. The associated chirp, including linear and nonlinear contributions, is also determined for each of these optical pulses. Parametric conditions for the existence of chirped soliton solutions are presented. Research limitations/implications - The paper presents a new efficient algorithm for handling an integrable generalization of the nonlinear Schriodinger equation. Practical/implications - The authors present a useful algorithm to handle nonlinear equations with spatial-temporal dispersion. The method is an effective method with promising results. Social/implications - This is a newly examined model. A useful method is presented to offer a reliable treatment. Originality/value - The paper presents a new efficient algorithm for handling an integrable generalization of the nonlinear Schrodinger equation.
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