Erratum to “On an approximation family of discrete polynomial operators” [J. Approx. Theory 164 (2012) 938–953]
نویسندگان
چکیده
منابع مشابه
Corrigendum to "Best approximation in polyhedral Banach spaces" [J. Approx. Theory 163 (11) (2011) 1748-1771]
The present note is a corrigendum to the paper “Best approximation in polyhedral Banach spaces”, J. Approx. Theory 163 (2011) 1748–1771. c ⃝ 2014 Elsevier Inc. All rights reserved.
متن کاملA method to obtain the best uniform polynomial approximation for the family of rational function
In this article, by using Chebyshev’s polynomials and Chebyshev’s expansion, we obtain the best uniform polynomial approximation out of P2n to a class of rational functions of the form (ax2+c)-1 on any non symmetric interval [d,e]. Using the obtained approximation, we provide the best uniform polynomial approximation to a class of rational functions of the form (ax2+bx+c)-1 for both cases b2-4a...
متن کاملextensions of some polynomial inequalities to the polar derivative
توسیع تعدادی از نامساوی های چند جمله ای در مشتق قطبی
15 صفحه اولDiscrete Approximation of Unbounded Operators and Approximation of their Spectra
Let E be a Banach space over C and let the densely defined closed linear operator A: D(A) ... EQ E be discretely approximated by the sequence ((An, D(An)))n ¥N of operators An where each An is densely defined in the Banach space Fn. Let sa(A) be the approximate point spectrum of A and let se(An) denote the e-pseudospectrum of An. Generalizing our own result, we show that sa(A) ... lim inf se(An...
متن کاملMultiscale Discrete Approximation of Fourier Integral Operators
Abstract. We develop a discretization and computational procedures for the approximation of the action of Fourier integral operators whose canonical relations are graphs. Such operators appear in many physical contexts and computational problems, for instance in the formulation of imaging and inverse scattering of seismic reflection data. Our discretization and algorithms are based on a multi-s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Approximation Theory
سال: 2012
ISSN: 0021-9045
DOI: 10.1016/j.jat.2012.06.006