Compactness of Commutators for Singular Integrals on Morrey Spaces
Compactness of Commutators for Singular Integrals on Morrey Spaces
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Morrey 空间上奇异积分换向器的紧性
DOI:
10.4153/cjm-2011-043-1
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发表时间:
2012-03
期刊:
影响因子:
--
通讯作者:
Wang, Xinxia
中科院分区:
文献类型:
--
作者:
Chen, Yanping;Ding, Yong;Wang, Xinxia
Abstract In this paper we characterize the compactness of the commutator $\left[ b,\,T \right]$ for the singular integral operator on the Morrey spaces ${{L}^{p,\lambda }}\left( {{\mathbb{R}}^{n}} \right)$ . More precisely, we prove that if $b\,\in \,\text{VMO}\left( {{\mathbb{R}}^{n}} \right)$ , the $\text{BMO}\left( {{\mathbb{R}}^{n}} \right)$ -closure of $C_{c}^{\infty }\left( {{\mathbb{R}}^{n}} \right)$ , then $\left[ b,\,T \right]$ is a compact operator on the Morrey spaces ${{L}^{p,\lambda }}\left( {{\mathbb{R}}^{n}} \right)$ for $1\,<\,p\,<\,\infty $ and $0\,<\,\lambda \,<\,n$ . Conversely, if $b\,\in \,\text{BMO}\left( {{\mathbb{R}}^{n}} \right)$ and $\left[ b,\,T \right]$ is a compact operator on the ${{L}^{p,\lambda }}\left( {{\mathbb{R}}^{n}} \right)$ for some $p\,\left( 1\,<\,p\,<\,\infty \right)$ , then $b\,\in \,\text{VMO}\left( {{\mathbb{R}}^{n}} \right)$ . Moreover, the boundedness of a rough singular integral operator $T$ and its commutator $\left[ b,\,T \right]$ on ${{L}^{p,\lambda }}\left( {{\mathbb{R}}^{n}} \right)$ are also given. We obtain a sufficient condition for a subset in Morrey space to be a strongly pre-compact set, which has interest in its own right.
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DOI:
10.1007/978-3-0348-0840-8_3
发表时间:
2014
期刊:
--
影响因子:
--
作者:
D. Cruz-Uribe;A. Fiorenza;Michael Ruzhansky;J. Wirth
通讯作者:
D. Cruz-Uribe;A. Fiorenza;Michael Ruzhansky;J. Wirth
DOI:
10.1007/978-0-387-49319-0
发表时间:
1941
期刊:
--
影响因子:
--
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通讯作者:
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影响因子:
1.1
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影响因子:
2.4
作者:
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通讯作者:
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影响因子:
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作者:
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