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Analytical study of dissipative solitary waves
, Article Physica Scripta ; Volume 77, Issue 2 , 2008 ; 00318949 (ISSN) ; Emamzadeh, M. M ; Khorasani, S ; Bobin, J. L ; Amrollahi, R ; Sodagar, M ; Khoshnegar, M ; Sharif University of Technology
2008
Abstract
In this paper, the analytical solution to a new class of nonlinear solitons is presented with cubic nonlinearity, subject to a dissipation term arising as a result of a first-order derivative with respect to time, in the weakly nonlinear regime. Exact solutions are found using the combination of the perturbation and Green's function methods up to the third order. We present an example and discuss the asymptotic behavior of the Green's function. The dissipative solitary equation is also studied in the phase space in the non-dissipative and dissipative forms. Bounded and unbounded solutions of this equation are characterized, yielding an energy conversation law for non-dissipative waves....