Nonlinear self adjointness, conservation laws and exact solutions of ill-posed Boussinesq equation

Abstract

In this work, we consider the ill-posed Boussinesq equation which arises in shallow water waves and non-linear lattices. We prove that the ill-posed Boussinesq equation is nonlinearly self-adjoint. Using this property and Lie point symmetries, we construct conservation laws for the underlying equation. In addition, the generalized solitonary, periodic and compact-like solutions are constructed by the exp-function method.

Keywords

• ill posed boussinesq equation
• conservation laws
• nonlinear self-adjointness
• exp-function method
• exact solutions
• 02.70.wz
• 05.45.yv
• 11.30.-j