We consider the interpolation problem for a class of radial basis functions (RBFs) that includes the classical polyharmonic splines (PHS). We show that the inverse of the system matrix for this interpolation problem can be approximated at an exponential rate in the block rank in the H-matrix format if the block structure of the H-matrix arises from a standard clustering algorithm.
This talk is based on a joint work with M. Faustmann and J.M. Melenk (see arXiv:2109.05763).
H-matrices for radial basis function interpolation
24.11.2021 15:30 - 16:00
Organiser:
SFB 65, DK
Location:
Zoom Meeting