Numerical evaluation of singular integrals on non-disjoint self-similar fractal sets
Numerical evaluation of singular integrals on non-disjoint self-similar fractal sets
复制标题
非不相交自相似分形集奇异积分的数值计算
DOI:
10.1007/s11075-023-01705-8
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发表时间:
2023
影响因子:
2.1
通讯作者:
Gibbs A
中科院分区:
文献类型:
--
作者:
Gibbs A
We consider the numerical evaluation of a class of double integrals with respect to a pair of self-similar measures over a self-similar fractal set (the attractor of an iterated function system), with a weakly singular integrand of logarithmic or algebraic type. In a recent paper (Gibbs et al. Numer. Algorithms92, 2071–2124 2023), it was shown that when the fractal set is “disjoint” in a certain sense (an example being the Cantor set), the self-similarity of the measures, combined with the homogeneity properties of the integrand, can be exploited to express the singular integral exactly in terms of regular integrals, which can be readily approximated numerically. In this paper, we present a methodology for extending these results to cases where the fractal is non-disjoint but non-overlapping (in the sense that the open set condition holds). Our approach applies to many well-known examples including the Sierpinski triangle, the Vicsek fractal, the Sierpinski carpet, and the Koch snowflake.
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影响因子:
2.1
作者:
Chandler-Wilde S
通讯作者:
Chandler-Wilde S
DOI:
--
发表时间:
2000
期刊:
The American mathematical monthly
影响因子:
--
作者:
R. Strichartz
通讯作者:
R. Strichartz
DOI:
--
发表时间:
2010
期刊:
J. Num. Math.
影响因子:
--
作者:
P. Meszmer
通讯作者:
P. Meszmer
影响因子:
2.1
作者:
Gibbs A
通讯作者:
Gibbs A
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
F. Calabrò;A. Esposito
通讯作者:
A. Esposito