Journal
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
Volume 336, Issue 2, Pages 1305-1315Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmaa.2007.03.017
Keywords
variable-coefficient nonlinear schrodinger equation; bilinear form; multi-soliton solutions; Backlund transformation; symbolic computation
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Under investigation in this paper is a generalized nonlinear Schrodinger model with variable dispersion, nonlinearity and gain/loss, which could describe the propagation of optical pulse in inhomogeneous fiber systems. By employing the Hirota method, one- and two-soliton solutions are obtained with the aid of symbolic computation. Furthermore, a general formula which denotes multi-soliton solutions is given. Some main properties of the solutions are discussed simultaneously. As one important property of nonlinear evolution equation, the Backlund transformation in bilinear form is also constructed, which is helpful on future research and as far as we know is firstly proposed in this paper. (c) 2007 Elsevier Inc. All rights reserved.
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