Journal
PHYSICS LETTERS A
Volume 354, Issue 5-6, Pages 428-436Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2006.01.084
Keywords
generalized extended tanh-function method; nonlinear equations of mathematical physics; solitonic solutions; computerized symbolic computation
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A generalized method with computerized symbolic computation, which is called the generalized extended tanh-function method, is presented for the nonlinear equations of mathematical physics (NEMPs). Compared with most of the existing tanh-function method, the extended tanh-function method, the modified extended tanh-function method and generalized hyperbolic-function method, the proposed method is more powerful. By use of the method, we not only can successfully recover the previously known formal solutions but also construct new and more general formal solutions for some NEMPs. Make use of the method, we study the (3 + 1)-dimensional potential-YTSF equation and obtain rich new families of the exact solutions, including the nontraveling wave and coefficient functions' soliton-like solutions, singular soliton-like solutions. (c) 2006 Elsevier B.V. All rights reserved.
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