Symmetry analysis, exact solutions and conservation laws of time fractional Caudrey–Dodd–Gibbon equation

Abstract

In this paper, Lie symmetry analysis method is applied to time fractional Caudrey–Dodd–Gibbon equation. We obtain a symmetric group spanned by two generators for the governing equation. The obtained group generators are used to reduce the studied fractional partial differential equation to some fractional ordinary differential equations with Riemann–Liouville fractional derivative or Erdélyi-Kober fractional derivative, thereby getting one trivial solution and one convergent power series solution for the reduced equations. Then we present the dynamic behavior of the obtained analytical solutions graphically. In addition, the new conservation theorem and the generalization of Noether operators are developed to construct the conservation laws for the equation studied.

Keywords

• Lie symmetry analysis
• Caudrey–Dodd–Gibbon equation
• Fractional differential equations
• Power series solutions
• Conservation laws