Approximation by polynomials and ridge functions of classes of s-monotone radial functions

• Autores: V. N. Konovalov, Dany Leviatan, V. E. Maiorov
• Localización: Journal of approximation theory, ISSN 0021-9045, Vol. 152, Nº 1, 2008, págs. 20-51
• Idioma: inglés
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• Resumen

  • We obtain estimates on the order of best approximation by polynomials and ridge functions in the spaces Lq of classes of s-monotone radial functions which belong to the space Lp, 1qp=8.