Geometric weakly admissible meshes, discrete least squares approximations and approximate Fekete points

L. Bos, J.-P. Calvi, N. Levenberg, A. Sommariva, M. Vianello

Source record

Source: Crossref

Published: Jan 19, 2011

DOI: 10.1090/s0025-5718-2011-02442-7

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Source abstract

Using the concept of Geometric Weakly Admissible Meshes (see §2 below) together with an algorithm based on the classical QR factorization of matrices, we compute efficient points for discrete multivariate least squares approximation and Lagrange interpolation.

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