Maximum Norm a Posteriori Error Estimation For a Time-dependent Reaction-diffusion Problem

نویسندگان

  • Natalia Kopteva
  • Torsten Linß
چکیده

Abstract — A semilinear second-order singularly perturbed parabolic equation in one space dimension is considered. For this equation, we give computable a posteriori error estimates in the maximum norm for a difference scheme that uses Backward-Euler in time and central differencing in space. Sharp L1-norm bounds for the Green’s function of the parabolic operator and its derivatives are derived that form the basis of the a posteriori error analysis. Numerical results are presented. 2010 Mathematical subject classification: 65M15; 65M50.

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عنوان ژورنال:
  • Comput. Meth. in Appl. Math.

دوره 12  شماره 

صفحات  -

تاریخ انتشار 2012