On one approach to a posteriori error estimates for evolution problems solved by the method of lines |
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Authors: | Ivo Babu?ka Miloslav Feistauer Pavel ?olín |
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Institution: | (1) Texas Institute of Computational and Applied Mathematics, University of Texas at Austin, Austin, TX 78713, USA , US;(2) Faculty of Mathematics and Physics, Charles University Prague, Sokolovská 83, 18675 Praha 8, Czech Republic , CZ |
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Abstract: | Summary. In this paper, we describe a new technique for a posteriori error estimates suitable to parabolic and hyperbolic equations
solved by the method of lines. One of our goals is to apply known estimates derived for elliptic problems to evolution equations.
We apply the new technique to three distinct problems: a general nonlinear parabolic problem with a strongly monotonic elliptic
operator, a linear nonstationary convection-diffusion problem, and a linear second order hyperbolic problem. The error is
measured with the aid of the -norm in the space-time cylinder combined with a special time-weighted energy norm. Theory as well as computational results
are presented.
Received September 2, 1999 / Revised version received March 6, 2000 / Published online March 20, 2001 |
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Keywords: | Mathematics Subject Classification (1991): 65 M 15 65 M 20 65 M 60 |
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