Stability and convergence of a local discontinuous Galerkin finite element method for the general Lax equation

Abstract

In this paper we develop and analyze the local discontinuous Galerkin (LDG) finite element method for solving the general Lax equation. The local discontinuous Galerkin method has the flexibility for arbitrary h and p adaptivity, and allows for hanging nodes. By choosing the numerical fluxes carefully we prove stability and give an error estimate. Finally some numerical examples are computed to show the convergence order and excellent numerical performance of proposed method.

Keywords

• lax equation
• local discontinuous galerkin method
• stability analysis
• error estimates
• 35s10
• 65m12