A Posteriori Error Estimates of Discontinuous Galerkin Method for Nonmonotone Quasi-linear Elliptic Problems

  • Authors:
  • Chunjia Bi;Victor Ginting

  • Affiliations:
  • Department of Mathematics, Yantai University, Shandong, P.R. China 264005;Department of Mathematics, University of Wyoming, Laramie, USA 82071

  • Venue:
  • Journal of Scientific Computing
  • Year:
  • 2013

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Abstract

In this paper, we propose and study the residual-based a posteriori error estimates of h-version of symmetric interior penalty discontinuous Galerkin method for solving a class of second order quasi-linear elliptic problems which are of nonmonotone type. Computable upper and lower bounds on the error measured in terms of a natural mesh-dependent energy norm and the broken H 1-seminorm, respectively, are derived. Numerical experiments are also provided to illustrate the performance of the proposed estimators.