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Positivity preserving temporal second-order spatial fourth-order conservative characteristic methods for convection dominated diffusion equations.
Dan Qin
Kai Fu
Dong Liang
Published in:
Comput. Math. Appl. (2023)
Keyphrases
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fourth order
diffusion equation
high order
noise removal
anisotropic diffusion
partial differential equations
nonlinear diffusion
image processing
pattern recognition
estimation error
filtering method
image interpolation
scale spaces