Abstract
A version of the John-Nirenberg inequality suitable for the functions b ∈ BMO with b− ∈ L∞ is established. Then, equivalent definitions of this space via the norm of weighted Lebesgue space are given. As an application, some characterizations of this function space are given by the weighted boundedness of the commutator with the Hardy-Littlewood maximal operator.
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We would like to thank the anonymous referee for his/her comments.
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This project has been supported by the National Natural Science Foundation of China (Nos. 11971237, 12071223, 12101010) and Natural Science Foundation of China of Anhui Province (No. 2108085QA19)
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Hu, M., Wang, D. The John-Nirenberg inequality for functions of bounded mean oscillation with bounded negative part. Czech Math J 72, 1121–1131 (2022). https://doi.org/10.21136/CMJ.2022.0362-21
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DOI: https://doi.org/10.21136/CMJ.2022.0362-21