Preconditioners for the indefinite linear system arising from thehpdiscretization of Maxwell's equations
โ Scribed by Ledger, P. D.
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 383 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1069-8299
- DOI
- 10.1002/cnm.1131
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โฆ Synopsis
Abstract
This paper describes a preconditioner for the iterative solution to the indefinite linear equation system that is obtained when the vector wave equation is discretized by higherโorder H(curl)โconforming finite elements. The preconditioner is based on a decomposition of the H(curl)โconforming functions into blocks comprising lowerโorder functions and higherโorder functions. Fast convergence is obtained when the grid spacing is sufficiently small. A method for selecting suitable grid spacings is proposed and a series of numerical examples are included to demonstrate the effectiveness of the approach. Copyright ยฉ 2008 John Wiley & Sons, Ltd.
๐ SIMILAR VOLUMES
The work deals with boundary equations appearing if non-stationary problems for Maxwell system are solved with the help of surface-retarded potentials. The solvability of these equations is proved in some functional spaces of Sobolev type.
## Abstract In this paper we consider a resolvent problem of the Stokes operator with some boundary condition in the half space, which is obtained as a model problem arising in evolution free boundary problems for viscous, incompressible fluid flow. We show standard resolvent estimates in the __L~q