Journal
APPLIED MATHEMATICS LETTERS
Volume 98, Issue -, Pages 49-56Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.aml.2019.05.039
Keywords
Uniform convergence of V-cycle multigrid method; Fractional tau-norm; Fast Fourier transform
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Funding
- National Natural Science Foundation of China (NSFC) [11601206]
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Analysing the fractional tau-norm, the uniform convergence of the V-cycle multigrid FEM for the time-dependent fractional problem is strictly proved when tau -> 0. The numerical experiments are performed to verify the convergence with O(NlogN) complexity by fast Fourier transform method. (C) 2019 Elsevier Ltd. All rights reserved.
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