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Homogeneous multigrid for HDG
IMA Journal of Numerical Analysis ( IF 2.1 ) Pub Date : 2021-07-19 , DOI: 10.1093/imanum/drab055 Peipei Lu 1 , Andreas Rupp 2 , Guido Kanschat 3
中文翻译:
HDG 的同构多重网格
更新日期:2021-07-21
IMA Journal of Numerical Analysis ( IF 2.1 ) Pub Date : 2021-07-19 , DOI: 10.1093/imanum/drab055 Peipei Lu 1 , Andreas Rupp 2 , Guido Kanschat 3
Affiliation
Abstract
We introduce a multigrid method that is homogeneous in the sense that it uses the same hybridizable discontinuous Galerkin (HDG) discretization scheme for Poisson’s equation on all levels. In particular, we construct a stable injection operator and prove optimal convergence of the method under the assumption of elliptic regularity. Numerical experiments underline our analytical findings.
中文翻译:
HDG 的同构多重网格
摘要
我们引入了一种多重网格方法,该方法是同质的,因为它在所有级别上对泊松方程使用相同的可混合不连续伽辽金 (HDG) 离散化方案。特别是,我们构造了一个稳定的注入算子,并证明了该方法在椭圆正则假设下的最佳收敛性。数值实验强调了我们的分析结果。