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A two-grid virtual element method for nonlinear variable-order time-fractional diffusion equation on polygonal meshes.

Qiling GuYanping ChenJianwei ZhouYunqing Huang
Published in: Int. J. Comput. Math. (2023)
Keyphrases
  • preprocessing
  • diffusion equation
  • high order
  • finite difference
  • edge detection
  • post processing
  • segmentation method
  • steady state
  • gaussian kernel