A stabilized Galerkin method for a third-order evolutionary problem

Authors:
Graeme Fairweather, J. M. Sanz-Serna and I. Christie

Journal:
Math. Comp. **55** (1990), 497-507

MSC:
Primary 65M60; Secondary 65M15

MathSciNet review:
1035932

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Abstract | References | Similar Articles | Additional Information

Abstract: The periodic initial value problem for the partial differential equation , , , arises in fluidization models. The numerical integration of the problem is a difficult task in that many "reasonable" finite difference and finite element methods give rise to unstable discretizations. We show how to modify the standard Galerkin technique in order to stabilize it. Optimal-order error estimates are derived and the results of numerical experiments are presented. The stabilization technique suggested in the paper can be interpreted as rewriting the problem in Sobolev form and would also be useful for other equations involving terms of the form .

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Additional Information

DOI:
https://doi.org/10.1090/S0025-5718-1990-1035932-9

Keywords:
Stability,
Galerkin methods,
fluidized beds,
Sobolev equations

Article copyright:
© Copyright 1990
American Mathematical Society