GLOBAL SMOOTHNESS PRESERVATION BY BIVARIATE INTERPOLATION OPERATORS

• 作 者: S.G.Gal J.Szabados
• 机 构: UniversityofOradea,HungarianAcademyofSciences
• 出 处: 分析理论与应用：英文刊
• 发表日期: 2003年3期
• 关键词: 二元插值法 球形光滑性 单变量问题 节点 埃尔米特多项式 拉格朗日多项式 bivariate interpolation polynomials and ope

Extending the results of [4] in the univariate case, in this paper we prove that the bivariate interpolation polynomials of Hermite-Fejer based on the Chebyshev nodes of the first kind, those of Lagrange based on the Chebyshev nodes of second kind and