Comparison of multigrid algorithms for high-order continuous finite element discretizations

Summary We present a comparison of different multigrid approaches for the solution of systems arising from high‐order continuous finite element discretizations of elliptic partial differential equations on complex geometries. We consider the pointwise Jacobi, the Chebyshev‐accelerated Jacobi, and th...

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Vydané v:	Numerical linear algebra with applications Ročník 22; číslo 4; s. 664 - 680
Hlavní autori:	Sundar, Hari, Stadler, Georg, Biros, George
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Oxford Blackwell Publishing Ltd 01.08.2015 Wiley Subscription Services, Inc Wiley Blackwell (John Wiley & Sons)
Predmet:	algebraic multigrid Coarsening Constants continuous finite elements Discretization Finite element method geometric multigrid high-order Mathematical analysis Mathematical models Polynomials preconditioning Smoothing spectral elements
ISSN:	1070-5325, 1099-1506
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