Journal
OPTICAL AND QUANTUM ELECTRONICS
Volume 49, Issue 8, Pages -Publisher
SPRINGER
DOI: 10.1007/s11082-017-1094-4
Keywords
Tzitzeica type nonlinear evolution equations; Painleve transformation; Lie symmetry method; Modified version of improved tan(Phi(xi)/2)-expansion method; New exact solutions
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The paper deals with the Tzitzeica type nonlinear evolution equations arising in nonlinear optics and their new exact solutions. First, through the use of the Painleve transformation and Lie symmetry method, the Tzitzeica, Dodd-Bullough-Mikhailov, and Tzitzeica-Dodd-Bullough equations are converted to nonlinear ordinary differential equations (NODEs), and then, a modified version of the improved tan(Phi(xi)/2)-expansion method, proposed by the authors, is adopted to generate new exact solutions of the reduced equations. The method truly recommends a reliable and capable technique to produce new exact solutions of a variety of nonlinear partial differential equations (NPDEs).
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