A PRECISE ESTIMATION METHOD FOR LOCATIONS IN AN INVERSE LOGARITHMIC POTENTIAL PROBLEM FOR POINT MASS MODELS

被引：29
|
作者：
OHE, T [1 ]
OHNAKA, K [1 ]
机构：
[1] OSAKA UNIV,OSAKA,JAPAN
来源：
APPLIED MATHEMATICAL MODELLING | 1994年 / 18卷 / 08期
关键词：
INVERSE LOGARITHMIC POTENTIAL PROBLEM; POINT MASS MODEL; ESTIMATION OF LOCATION; DISCRETE FOURIER TRANSFORM; NUMERICAL METHOD; ERROR ESTIMATE;
D O I：
10.1016/0307-904X(94)90306-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A numerical method is discussed for an inverse logarithmic potential problem for a point mass model. We first show the relation between locations of point masses and Fourier expansion of the logarithmic potential, and show a method using discrete Fourier coefficients. Next a modified method is proposed based on a property of the discrete Fourier transform of the logarithmic potential. We give error estimates for our modified method, and compare it with the method using only discrete Fourier coefficients. Numerical examples illustrate the applicability and advantages of our modified method
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页码：446 / 452
页数：7
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