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Block structured preconditioners in tensor form for the all-at-once solution of a finite volume fractional diffusion equation.
Daniele Bertaccini
Fabio Durastante
Published in:
Appl. Math. Lett. (2019)
Keyphrases
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diffusion equation
integral equation
anisotropic diffusion
edge preserving
linear systems
diffusion process
high order
image restoration
scale space
diffusion tensor
scale spaces
image processing
computer vision
higher order
multiresolution
iterative methods
numerical integration