Convergence of Multilevel Stationary Gaussian Quasi-Interpolation

Autor:	Hubbert, Simon, Levesley, Jeremy
Rok vydání:	2016
Předmět:	Mathematics - Numerical Analysis 41A15 65D15 65D05
Druh dokumentu:	Working Paper
Popis:	In this paper we present a new multilevel quasi-interpolation algorithm for smooth periodic functions using scaled Gaussians as basis functions. Recent research in this area has focussed upon implementations using basis function with finite smoothness. In this paper we deliver a first error estimates for the multilevel algorithm using analytic basis functions. The estimate has two parts, one involving the convergence of a low degree polynomial truncation term and one involving the control of the remainder of the truncation as the algorithm proceeds. Thus, numerically one observes a convergent scheme. Numerical results suggest that the scheme converges much faster than the theory shows. Comment: 29 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1609.02457 Zobrazit plný text záznamu View this record from Arxiv