Simpson's rule to approximate Hilbert integral and its application

被引:3
|
作者
Li, Jin [1 ]
Wang, Zhaoqing [2 ]
机构
[1] Shandong Jianzhu Univ, Sch Sci, Jinan 250101, Shandong, Peoples R China
[2] Shandong Jianzhu Univ, Inst Engn Mech, Jinan 250101, Shandong, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Hilbert singular integral; Composite Simpson's rule; Boundary integral equation; Superconvergence point; PRINCIPAL-VALUE INTEGRALS; STRONGLY SINGULAR-INTEGRALS; GAUSSIAN QUADRATURE-RULES; BOUNDARY-ELEMENT METHODS; NEWTON-COTES RULES; UNIFORM-CONVERGENCE; RECTANGLE RULE; SUPERCONVERGENCE; EQUATION; SPLINE;
D O I
10.1016/j.amc.2018.07.011
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, the computation of Hilbert singular integral with generalized composite Simpson's rule for is discussed. When singular points coincide with some a priori known point, the convergence rate of Simpson's rule higher than global one, we obtain the point-wise superconvergence phenomenon. Which means the especial function equal zero, the superconvergence points are got. Then choosing the superconvergence point as the collocation points, we get a collocation scheme for solving the relevant Hilbert integral equation. At last, some numerical examples are presented to validate the theoretical analysis. (C) 2018 Elsevier Inc. All rights reserved.
引用
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页码:398 / 409
页数:12
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