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Legendre spectral methods for the -grad (div) operator with free boundary conditions

✍ Scribed by E. Ahusborde


Publisher
Springer US
Year
2009
Tongue
English
Weight
557 KB
Volume
52
Category
Article
ISSN
1017-1398

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Legendre spectral methods for the βˆ’grad(
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This paper describes two Legendre spectral methods for the Γ€grad(div) eigenvalue problem in R 2 . The first method uses a single grid resulting from the P N P N discretization in primal and dual variational formulations. As is well-known, this method is unstable and exhibits spectral 'pollution' eff