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Chebyshev 小波求解超奇异积分

陈一鸣 付小红 李宣 刘丽丽

辽宁工程技术大学学报(自然科学版)Issue(3):429-432,4.
辽宁工程技术大学学报(自然科学版)Issue(3):429-432,4.

Chebyshev 小波求解超奇异积分

Chebyshev wavelets for solving hyper-singular integral

陈一鸣 1付小红 1李宣 1刘丽丽1

作者信息

  • 1. 燕山大学 理学院,河北 秦皇岛 066004
  • 折叠

摘要

Abstract

In terms of the hyper-singular integrals numerical calculation problems, this paper uses the Chebyshev wavelets to calculate the hyper-singular integrals which are based on the definition of Hadamard finite-part integrals of the hyper-singular integrals. As the Chebyshev wavelet has the properties of orthogonality, the explicit expression and the computability of wavelet function, the singular point in the hyper-singular interval can be transformed into the endpoints of interval, and subsequently, the hyper-singular integral can be computed by using the definition of Hadamard finite-part integral where the hyper-singular point is located at the endpoints of interval. The study examples demonstrate the validity and applicability of the proposed technique.

关键词

Chebyshev 小波/超奇异积分/Hadamard 有限部分积分/Chebyshev 多项式/数值计算/奇异点/函数逼近/误差

Key words

Chebyshev wavelet/hypersingular integral/Hadamard finite-part integral/Chebyshev polynomial/numerical calculation/singular point/function approximation/error

分类

数理科学

引用本文复制引用

陈一鸣,付小红,李宣,刘丽丽..Chebyshev 小波求解超奇异积分[J].辽宁工程技术大学学报(自然科学版),2013,(3):429-432,4.

基金项目

河北省自然科学基金资助项目(A2012203047) (A2012203047)

辽宁工程技术大学学报(自然科学版)

OA北大核心CSTPCD

1008-0562

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