On the problem of existence in principal value of a Calderón–Zygmund operator on a space of non‐homogeneous type
On the problem of existence in principal value of a Calderón–Zygmund operator on a space of non‐homogeneous type
复制标题
非齐次型空间上卡尔德隆-齐格蒙德算子主值的存在性问题
DOI:
10.1112/plms.12316
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发表时间:
2019
影响因子:
1.8
通讯作者:
Merchán, Tomás
中科院分区:
文献类型:
--
作者:
Jaye, Benjamin;Merchán, Tomás
In this paper, we study the relationship between two fundamental regularity properties of an‐dimensional Calderón–Zygmund operator (CZO) acting on a Borel measurein, with.In the classical case whenandis equal to the Lebesgue measure, Calderón and Zygmund showed that if a CZO is bounded in, then the principal value integral exists almost everywhere. However, there are by now several examples showing that this implication may fail for lower dimensional kernels and measures, even when the CZO has a homogeneous kernel consisting of spherical harmonics.We introduce sharp geometric conditions on, in terms of certain scaled transportation distances, which ensure that an extension of the Calderón–Zygmund theorem holds. These conditions are necessary and sufficient in the cases of the Riesz transform and the Huovinen transform. Our techniques build upon prior work by Mattila and Verdera, and incorporate the machinery of symmetric measures, introduced to the area by Mattila.
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DOI:
10.4171/rmi/1196
发表时间:
2020
期刊:
Revista Matemática Iberoamericana
影响因子:
--
作者:
Jaye, Benjamin;Merchán, Tomás
通讯作者:
Merchán, Tomás
影响因子:
1.7
作者:
V. Chousionis;J. Mateu;Laura Prat;X. Tolsa
通讯作者:
X. Tolsa
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
F. Nazarov;A. Volberg;X. Tolsa
通讯作者:
X. Tolsa
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
J. Verdera
通讯作者:
J. Verdera
影响因子:
2.6
作者:
P. Mattila;J. Verdera
通讯作者:
J. Verdera