Abstract
Let Ω be homogeneous of degree zero and have mean value zero on the unit sphere Sd− 1, TΩ be the homogeneous singular integral operator with kernel \(\frac {\Omega (x)}{|x|^{d}}\) and TΩ,b be the commutator of TΩ with symbol b. In this paper, we prove that if \({\Omega }\in L(\log L)^{2}(S^{d-1})\), then for \(b\in \text {BMO}(\mathbb {R}^{d})\), TΩ,b satisfies an endpoint estimate of \(L\log L\) type.
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The authors would like to express their sincerely thanks to the referee for his/her valuable remarks and suggestions, which made this paper more readable. Also, The authors would like to thank Dr. Israel. P. Rivera-Ríos for helpful comments.
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The research of the first author was supported by the NNSF of China (Nos. 11871108, 11971295), and the research of the second (corresponding) author was supported by the NNSF of China (No. 11771399).
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Hu, G., Tao, X. An Endpoint Estimate for the Commutators of Singular Integral Operators with Rough Kernels. Potential Anal 58, 241–262 (2023). https://doi.org/10.1007/s11118-021-09939-8
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DOI: https://doi.org/10.1007/s11118-021-09939-8