Abstract
New Banach function spaces \(L^{p(\cdot ),\theta }(X)\) unifying grand Lebesgue spaces and variable Lebesgue spaces are introduced by Kokilashvili and Meskhi. The spaces and operators are defined on quasi-metric finite measure spaces with doubling condition (spaces of homogeneous type). Weighted inequalities with power-type weights in \(L^{p(\cdot ),\theta }(X)\) are obtained for Hardy–Littlewood maximal operators, singular integral operators, and commutators of singular integrals. To obtain these results, a weighted extrapolation theorem on \(L^{p(\cdot ),\theta }(X)\) is established, which has an independent interest.
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Acknowledgements
We would like to thank the referees for their careful reading of the paper and for their useful comments and suggestions. This project is supported by the National Natural Science Foundation of China (Nos. 12261083, 12161083), the Natural Science Foundation of Xinjiang Uyghur Autonomous Region (No. 2020D01C048), and Xinjiang Key Laboratory of Applied Mathematics (No. XJDX1401).
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Communicated by Dachun Yang.
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Yang, S., Sun, J. & Li, B. Maximal and Calderón–Zygmund operators in grand variable Lebesgue spaces. Banach J. Math. Anal. 17, 46 (2023). https://doi.org/10.1007/s43037-023-00272-3
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DOI: https://doi.org/10.1007/s43037-023-00272-3
Keywords
- Space of homogeneous type
- Reverse doubling space
- Grand variable Lebesgue space
- Maximal operator
- Singular integral