Multigrid preconditioned conjugate-gradient solver for mixed finite-element method

The mixed finite-element approximation to a second-order elliptic PDE results in a saddle-point problem and leads to an indefinite linear system of equations. The mixed system of equations can be transformed into coupled symmetric positive-definite matrix equations, or a Schur complement problem, us...

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Vydané v:	Computational geosciences Ročník 14; číslo 2; s. 289 - 299
Hlavní autori:	Wilson, John David, Naff, Richard L.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Dordrecht Springer Netherlands 01.03.2010 Springer Nature B.V
Predmet:	Algorithms Earth and Environmental Science Earth Sciences Finite element analysis Fluid mechanics Geotechnical Engineering & Applied Earth Sciences Hydraulics Hydrogeology Mathematical Modeling and Industrial Mathematics Original Paper Soil Science & Conservation Conjugate gradient Mixed finite element method Multigrid Subsurface flow Distorted grids Nested iteration Lowest-order Raviart–Thomas
ISSN:	1420-0597, 1573-1499
On-line prístup:	Získať plný text
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