[图书][B] A course in approximation theory

EW Cheney, WA Light - 2009 - books.google.com
This textbook is designed for graduate students in mathematics, physics, engineering, and
computer science. Its purpose is to guide the reader in exploring contemporary …

Approximation by spherical convolution

VA Menegatto - Numerical Functional Analysis and Optimization, 1997 - Taylor & Francis
Uniform and L [p] approximations of a given function defined on a sphere by spherical
convolutions of it with suitable kernels are studied. We fill in some gaps in the theory of …

Interpolation on spheres by positive definite functions

EW Cheney, X Sun - Approximation Theory, 2021 - api.taylorfrancis.com
This paper describes recent research on the problem of interpolating data that has been
collected on a spherical surface of arbitrary dimension. The interpolation is to be carried out …

Scattered data interpolation of Radon data

RK Beatson, W zu Castell - Calcolo, 2011 - Springer
Linear combinations of translates of a given basis function have long been successfully
used to solve scattered data interpolation and approximation problems. We demonstrate …

Funções positivas definidas para interpolação em esferas complexas.

AP Peron - 2001 - teses.usp.br
Apresentamos uma caracterização das funções positivas definidas em esferas complexas,
generalizando assim, um resultado de Schoenberg ([41]). Como no caso real, uma classe …