On collocation matrices for interpolation and approximation

• Autores: Yeon Ju Lee, Charles A. Micchelli
• Localización: Journal of approximation theory, ISSN 0021-9045, Vol. 174, Nº 1, 2013, págs. 148-181
• Idioma: inglés
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• Resumen

  • In this paper, we study problems of interpolation, linear regression and regularization associated with collocation matrices. We investigate the asymptotic behavior of these problems when the columns of the collocation matrix approach the same vector.