An algebraic method to construct the exact solutions of nonlinear differential-difference equations is presented by introducing the coupled Riccati equations. As an example, we apply this method to the general lattice equation, the relativistic Toda lattice equations and the (2 + 1) dimensional Toda lattice equation. Some kink solitary wave solutions and complexiton solutions are obtained with the help of symbolic system Mathematica. Our method can also be applied to other nonlinear differential-difference equations.
机构:
Donghua Univ, Modern Text Inst, Shanghai 200051, Peoples R China
Shanghai Univ, Dept Math, Shanghai 200444, Peoples R ChinaDonghua Univ, Modern Text Inst, Shanghai 200051, Peoples R China
Wu, Guo-cheng
Xia, Tie-cheng
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机构:
Shanghai Univ, Dept Math, Shanghai 200444, Peoples R ChinaDonghua Univ, Modern Text Inst, Shanghai 200051, Peoples R China
机构:
Mansoura Univ, Fac Engn, Math & Engn Phys Dept, Mansoura 35516, Egypt
New Mansoura Univ, Fac Sci, Dept Math, New Mansoura City, EgyptPrince Sattam Bin Abdulaziz Univ, Coll Sci & Humanities Al Kharj, Dept Math, Al Kharj 11942, Saudi Arabia