Numerical hyperinterpolation over spherical triangles

A. Sommariva and M. Vianello

Mathematics and Computers in Simulation (MATCOM), 2021, vol. 190, issue C, 15-22

Abstract: We present a numerical method (implemented in Matlab) for computing an orthogonal polynomial basis on spherical triangles, via a recent near-algebraic quadrature formula, and constructing the corresponding weighted orthogonal projection (hyperinterpolation) of a function sampled at the quadrature nodes.

Keywords: Spherical triangles; Algebraic quadrature; Orthogonal polynomials; Hyperinterpolation (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:190:y:2021:i:c:p:15-22

DOI: 10.1016/j.matcom.2021.05.003

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