Characterizations of the BMO and Lipschitz Spaces via Commutators on Weak Lebesgue and Morrey Spaces

被引:0
|
作者
Ding-huai WANG [1 ]
Jiang ZHOU [2 ]
机构
[1] School of Mathematics and Statistics, Anhui Normal University
[2] College of Mathematics and System Sciences, Xinjiang University
基金
中国国家自然科学基金;
关键词
D O I
暂无
中图分类号
O177 [泛函分析];
学科分类号
070104 ;
摘要
We prove that the weak Morrey space W Mqpis contained in the Morrey space Mq1pfor 1 ≤ q1<q ≤ p < ∞. As applications, we show that if the commutator [b, T ] is bounded from Lpto Lp,∞for some p ∈(1, ∞), then b ∈ BMO, where T is a Calderón-Zygmund operator. Also, for 1 < p ≤ q < ∞, b ∈ BMO if and only if [b, T ] is bounded from Mqpto W Mqp. For b belonging to Lipschitz class, we obtain similar results.
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页码:583 / 590
页数:8
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