Highly localized kernels on the sphere induced by Newtonian kernels

Highly localized kernels on the sphere induced by Newtonian kernels
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由牛顿核引起的球体上高度局域化的核

DOI:
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
P. Petrushev
P. Petrushev
中科院分区:
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文献类型:
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作者:
K. Ivanov;P. Petrushev

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本文的目的是在${mathbb R}^d$中的单位球面上构造高度局部化的可和核,它是对单位球外极点在${mathbb R}^d$中的拉普拉斯方程(牛顿核)的基本解的少量移位的线性组合的球面的限制.同样的问题也适用于${mathbb R}^d$中的子空间${mathbb R}^{d-1}$。
The purpose of this article is to construct highly localized summability kernels on the unit sphere in ${mathbb R}^d$ that are restrictions to the sphere of linear combinations of a small number of shifts of the fundamental solution of the Laplace equation (Newtonian kernel) with poles outside the unit ball in ${mathbb R}^d$. The same problem is also solved for the subspace ${mathbb R}^{d-1}$ in ${mathbb R}^d$.
DOI: 10.1090/tran/8071
发表时间: 2020
影响因子: 1.3
作者:
Ivanov, Kamen G.;Petrushev, Pencho
通讯作者: Petrushev, Pencho