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Nonlinear multigrid based on local spectral coarsening for heterogeneous diffusion problems.
Chak Shing Lee
François P. Hamon
Nicola Castelletto
Panayot S. Vassilevski
Joshua A. White
Published in:
CoRR (2020)
Keyphrases
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np complete
image processing
multiresolution
np hard
optimization problems
computationally expensive
flow field
anisotropic diffusion
solving problems
linear systems