tailieunhanh - Báo cáo hóa học: " Higher order Hermite-Fejér interpolation polynomials with Laguerre-type weights"

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Higher order Hermite-Fejér interpolation polynomials with Laguerre-type weights | Jung and Sakai Journal of Inequalities and Applications 2011 2011 122 http content 2011 1 122 Journal of Inequalities and Applications a SpringerOpen Journal RESEARCH Open Access Higher order Hermite-Fejér interpolation polynomials with Laguerre-type weights Heesun Jung 1 and Ryozi Sakai2 Correspondence hsun90@skku. edu department of Mathematics Education Sungkyunkwan University Seoul 110-745 Republic of Korea Full list of author information is available at the end of the article Springer Abstract Let R 0 and R R R be a continuous function which is the Laguerre-type exponent and pn p x p 2 be the orthonormal polynomials with the weight wp x xp e-R x . For the zeros xk n p n 1 of pn p x pn wj x we consider the higher order Hermite-Fejér interpolation polynomial Ln l m f x based at the zeros xk n p n 1 where 0 l m - 1 are positive integers. 2010 Mathematics Subject Classification 41A10. Keywords Laguerre-type weights orthonormal polynomials higher order Hermite-Fejér interpolation polynomials l. Introduction and main results Let R - and R 0 . Let R R R be a continuous non-negative and increasing function. Consider the exponential weights wp x xp exp -R x p -1 2 and then we construct the orthonormal polynomials pn p x n 0 with the weight wp x . Then for the zeros xk n p n 1 of pn p x pn wp x we obtained various estimations with respect to pnp xknp k 1 2 . n j 1 2 . V in 1 . Hence in this article we will investigate the higher order Hermite-Fejér interpolation polynomial Ln l m f x based at the zeros xk n p n 1 using the results from 1 and we will give a divergent theorem. This article is organized as follows. In Section 1 we introduce some notations the weight classes L2 v with L C2 L C2 and main results. In Section 2 we will introduce the classes F C2 and F C2 and then we will obtain some relations of the factors derived from the classes F C2 F C2 and the classes L C2 L C2 . Finally we will prove the main theorems using .

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