Title
A simple preconditioner for the SIPG discretization of linear elasticity equations
Abstract
We deal with the solution of the systems of linear algebraic equations arising from Symmetric Interior Penalty discontinuous Galerkin (SIPG) discretization of linear elasticity problems in primal (displacement) formulation. The main focus of the paper is on constructing a uniform preconditioner which is based on a natural splitting of the space of piecewise linear discontinuous functions. The presented approach has recently been introduced in [2] in the context of designing subspace correction methods for scalar elliptic partial differential equations and is extended here to linear elasticity equations, i.e., a class of vector field problems. Similar to the scalar case the solution of the linear algebraic system corresponding to the SIPG method is reduced to the solution of a problem arising from discretization by nonconforming Crouzeix-Raviart elements plus the solution of a well-conditioned problem on the complementary space.
Year
DOI
Venue
2010
10.1007/978-3-642-18466-6_42
NMA
Keywords
Field
DocType
linear algebra,linear elasticity,discontinuous galerkin,elliptic partial differential equation,piecewise linear,vector field
Discontinuous Galerkin method,Discretization,Coefficient matrix,Preconditioner,System of linear equations,Mathematical analysis,Algebraic equation,Linear elasticity,Elliptic partial differential equation,Mathematics
Conference
Volume
ISSN
Citations 
6046
0302-9743
0
PageRank 
References 
Authors
0.34
4
4
Name
Order
Citations
PageRank
Blanca Ayuso de Dios110.96
Ivan Georgiev271.77
J. Kraus3466.22
Ludmil Zikatanov418925.89