Approximation by Dirichlet series with nonnegative coefficients

被引:9
|
作者
Liu, YK [1 ]
机构
[1] Loughborough Univ Technol, Dept Math Sci, Loughborough LE11 3TU, Leics, England
关键词
Dirichlet series; completely monotonic function; Muntz theorems; relaxation modulus; rheology;
D O I
10.1006/jath.2001.3589
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The problem of approximating a given function by Dirichlet series with nonnegative coefficients is associated with the discrete spectral representation of the relaxation modulus in rheology. The main result of this paper is that if a function can be approximated arbitrarily closely by Dirichlet series with nonnegative coefficients in supremum norm or L-p-norm. 1 less than or equal to p < infinity, then it must be completely monotonic, (C) 2001 Academic Press.
引用
收藏
页码:226 / 234
页数:9
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