Two-Grid hp -Version DGFEMs for Strongly Monotone Second-Order Quasilinear Elliptic PDEs
Two-Grid hp -Version DGFEMs for Strongly Monotone Second-Order Quasilinear Elliptic PDEs
复制标题
用于强单调二阶拟线性椭圆偏微分方程的双网格 hp 版本 DGFEM
DOI:
10.1002/pamm.201110002
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Congreve S
中科院分区:
文献类型:
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作者:
Congreve S
In this article we develop thea priorierror analysis of so‐called two‐gridhp‐version discontinuous Galerkin finite element methods for the numerical approximation of strongly monotone second‐order quasilinear partial differential equations. In this setting, the fully nonlinear problem is first approximated on a coarse finite element spaceV(𝒯H,P). The resulting ‘coarse’ numerical solution is then exploited to provide the necessary data needed to linearize the underlying discretization on the finer spaceV(𝒯h,p); thereby, only a linear system of equations is solved on the richer spaceV(𝒯h,p). Numerical experiments confirming the theoretical results are presented. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)