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A Priori Error Analysis of a Discontinuous Galerkin Scheme for the Magnetic Induction Equation

  • Tanmay Sarkar EMAIL logo

Abstract

We perform the error analysis of a stabilized discontinuous Galerkin scheme for the initial boundary value problem associated with the magnetic induction equations using standard discontinuous Lagrange basis functions. In order to obtain the quasi-optimal convergence incorporating second-order Runge–Kutta schemes for time discretization, we need a strengthened 4 / 3 -CFL condition ( Δ t h 4 / 3 ). To overcome this unusual restriction on the CFL condition, we consider the explicit third-order Runge–Kutta scheme for time discretization. We demonstrate the error estimates in L 2 -sense and obtain quasi-optimal convergence for smooth solution in space and time for piecewise polynomials with any degree l 1 under the standard CFL condition.

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Received: 2018-02-13
Revised: 2018-07-20
Accepted: 2018-08-08
Published Online: 2018-09-11
Published in Print: 2020-01-01

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