Unigrid for multigrid simulation
Authors: S. F. McCormick and J. W. Ruge
Journal: Math. Comp. 41 (1983), 43-62
MSC: Primary 65N20; Secondary 65F10, 65N50
MathSciNet review: 701623
Abstract: This paper develops unigrid which is an algorithm that results from interpreting multigrid as it directly affects the fine grid approximation. Unigrid is theoretically equivalent to multigrid under certain assumptions, yet has different computational characteristics. Though it is generally less efficient, unigrid is very useful as a software tool for testing the feasibility of applying multigrid to a given problem. This is illustrated with several numerical examples.
-  Achi Brandt, Multi-level adaptive solutions to boundary-value problems, Math. Comp. 31 (1977), no. 138, 333–390. MR 0431719, https://doi.org/10.1090/S0025-5718-1977-0431719-X
-  S. F. McCormick and J. W. Ruge, Multigrid methods for variational problems, SIAM J. Numer. Anal. 19 (1982), no. 5, 924–929. MR 672568, https://doi.org/10.1137/0719067