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An efficient two-grid fourth-order compact difference scheme with variable-step BDF2 method for the semilinear parabolic equation.

Bingyin ZhangHongfei Fu
Published in: CoRR (2023)
Keyphrases
  • fourth order
  • pairwise
  • similarity measure
  • objective function
  • noise removal
  • error rate
  • computer vision
  • least squares
  • frequency domain
  • high order
  • numerical methods