渐进迭代勋伯格-马斯登变异递减算子及相关二次函数

IF 2.2 2区数学 Q1 MATHEMATICS, APPLIED

Applied Numerical Mathematics Pub Date : 2024-08-22 DOI:10.1016/j.apnum.2024.08.014

Elena Fornaca, Paola Lamberti

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引用次数: 0

摘要

在本文中，我们提出了一种基于经典勋伯格-马斯登变异递减算子的近似方法，并将其应用于构建新的正交规则。我们将新算子与 [12] 中研究的多级算子进行比较，以确定二者与众所周知的经典算子的特性。我们讨论了收敛特性，并给出了数值实验结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Progressive iterative Schoenberg-Marsden variation diminishing operator and related quadratures

In this paper we propose an approximation method based on the classical Schoenberg-Marsden variation diminishing operator with applications to the construction of new quadrature rules. We compare the new operator with the multilevel one studied in [12] in order to characterize both of them with respect to the well known classical one. We discuss convergence properties and present numerical experiments.

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来源期刊

Applied Numerical Mathematics 数学-应用数学

CiteScore

5.60

自引率

7.10%

发文量

225

审稿时长

7.2 months

期刊介绍： The purpose of the journal is to provide a forum for the publication of high quality research and tutorial papers in computational mathematics. In addition to the traditional issues and problems in numerical analysis, the journal also publishes papers describing relevant applications in such fields as physics, fluid dynamics, engineering and other branches of applied science with a computational mathematics component. The journal strives to be flexible in the type of papers it publishes and their format. Equally desirable are: (i) Full papers, which should be complete and relatively self-contained original contributions with an introduction that can be understood by the broad computational mathematics community. Both rigorous and heuristic styles are acceptable. Of particular interest are papers about new areas of research, in which other than strictly mathematical arguments may be important in establishing a basis for further developments. (ii) Tutorial review papers, covering some of the important issues in Numerical Mathematics, Scientific Computing and their Applications. The journal will occasionally publish contributions which are larger than the usual format for regular papers. (iii) Short notes, which present specific new results and techniques in a brief communication.