Proposal for Use the Fractional Derivative of Radial Functions in Interpolation Problems
Abstract
In this document we present the construction of a radial functions that have the objective of emulating the behavior of the radial basis function thin plate spline (TPS), which we will name as function TPS, we propose a way to partially and totally apply the fractional derivative to these functions to be used in interpolation problems, a proposal is presented to precondition the matrices generated in the interpolation problem using the $QR$ decomposition and finally is proposed the form of a radial interpolant to be used when solving differential equations using the asymmetric collocation method.
- Publication:
-
arXiv e-prints
- Pub Date:
- June 2019
- DOI:
- 10.48550/arXiv.1906.03760
- arXiv:
- arXiv:1906.03760
- Bibcode:
- 2019arXiv190603760T
- Keywords:
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- Mathematics - Numerical Analysis;
- Mathematics - Analysis of PDEs