Title
Uniformly Convergent Iterative Methods for Discontinuous Galerkin Discretizations
Abstract
We present iterative and preconditioning techniques for the solution of the linear systems resulting from several discontinuous Galerkin (DG) Interior Penalty (IP) discretizations of elliptic problems. We analyze the convergence properties of these algorithms for both symmetric and non-symmetric IP schemes. The iterative methods are based on a "natural" decomposition of the first order DG finite element space as a direct sum of the Crouzeix-Raviart non-conforming finite element space and a subspace that contains functions discontinuous at interior faces. We also present numerical examples confirming the theoretical results.
Year
DOI
Venue
2009
10.1007/s10915-009-9293-1
J. Sci. Comput.
Keywords
Field
DocType
first order,linear system,iteration method,discontinuous galerkin,finite element
Discontinuous Galerkin method,Convergence (routing),Mathematical optimization,Linear system,Iterative method,Mathematical analysis,Extended finite element method,Uniform convergence,Finite element method,Mathematics,Mixed finite element method
Journal
Volume
Issue
ISSN
40
1-3
1573-7691
Citations 
PageRank 
References 
11
0.72
14
Authors
2
Name
Order
Citations
PageRank
Blanca Ayuso De Dios1332.85
Ludmil Zikatanov218925.89