We present, in a unified framework, new conforming and nonconforming virtual element methods for general second-order elliptic problems in two and three dimensions. The differential operator is split into its symmetric and nonsymmetric parts and conditions for stability and accuracy on their discrete counterparts are established. These conditions are shown to lead to optimal H1- A nd L2-error estimates, confirmed by numerical experiments on a set of polygonal meshes. The accuracy of the numerical approximation provided by the two methods is shown to be comparable.

Conforming and nonconforming virtual element methods for elliptic problems / Cangiani, A.; Manzini, G.; Sutton, O. J.. - In: IMA JOURNAL OF NUMERICAL ANALYSIS. - ISSN 1464-3642. - 37:3(2017), pp. 1317-1354. [10.1093/imanum/drw036]

Conforming and nonconforming virtual element methods for elliptic problems

Cangiani A.
;
2017-01-01

Abstract

We present, in a unified framework, new conforming and nonconforming virtual element methods for general second-order elliptic problems in two and three dimensions. The differential operator is split into its symmetric and nonsymmetric parts and conditions for stability and accuracy on their discrete counterparts are established. These conditions are shown to lead to optimal H1- A nd L2-error estimates, confirmed by numerical experiments on a set of polygonal meshes. The accuracy of the numerical approximation provided by the two methods is shown to be comparable.
2017
37
3
1317
1354
https://arxiv.org/abs/1507.03543
Cangiani, A.; Manzini, G.; Sutton, O. J.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/135246
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