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An Adaptive Multigrid Method for Semilinear Elliptic Equations

An Adaptive Multigrid Method for Semilinear Elliptic Equations
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Year:    2019

Author:    Fei Xu, Qiumei Huang, Shuangshuang Chen, Tao Bing

East Asian Journal on Applied Mathematics, Vol. 9 (2019), Iss. 4 : pp. 683–702

Abstract

An adaptive multigrid method for semilinear elliptic equations based on adaptive multigrid methods and on multilevel correction methods is developed. The solution of a semilinear problem is reduced to a series of linearised elliptic equations on the sequence of adaptive finite element spaces and semilinear elliptic problems on a very low dimensional space. The corresponding linear elliptic equations are solved by an adaptive multigrid method. The convergence and optimal complexity of the algorithm is proved and illustrating numerical examples are provided. The method requires only the Lipschitz continuity of the nonlinear term. This approach can be extended to other nonlinear problems, including Navier-Stokes problems and phase field models.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/eajam.061118.070419

East Asian Journal on Applied Mathematics, Vol. 9 (2019), Iss. 4 : pp. 683–702

Published online:    2019-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    20

Keywords:    Semilinear elliptic problem adaptive multigrid method convergence optimal complexity.

Author Details

Fei Xu

Qiumei Huang

Shuangshuang Chen

Tao Bing

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