Exponential convergence of hp FEM for spectral fractional diffusion in polygons.
Lehel BanjaiJens Markus MelenkChristoph SchwabPublished in: Numerische Mathematik (2023)
Keyphrases
- finite element
- convergence speed
- diffusion process
- anisotropic diffusion
- iterative algorithms
- finite element method
- hyperspectral imagery
- fractional order
- spectral images
- convex hull
- multispectral
- minkowski sum
- diffusion equation
- spectral features
- geometric objects
- nonlinear diffusion
- hyperspectral images
- faster convergence
- information diffusion
- social networks
- boundary conditions
- numerical simulations
- image analysis
- multiscale
- image segmentation
- image processing