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arxiv: 1808.08637 · v1 · pith:R7URTBYOnew · submitted 2018-08-26 · 🧮 math.CA

Highly localized kernels on the sphere induced by Newtonian kernels

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keywords mathbbkernelsspherehighlylocalizednewtonianunitarticle
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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 ${\mathbb R}^d$.

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