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Shaoyong He,
Lei Wang, and
Yun Fan
Hardy-Littlewood maximal functions, Riesz transform, and their commutators
in the Dunkl setting
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| Published: |
June 27, 2026. |
| Keywords: |
Hardy-Littlewood maximal operator, Dunkl-Riesz transform, commutator, Lipschitz space. |
| Subject [2020]: |
Primary 42B35, 43A85, Secondary 42B25, 42B20. |
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Abstract
This paper investigates the boundedness of commutators associated with the Hardy-Littlewood maximal operator, the sharp maximal operator, and the Riesz transform in the Dunkl setting. We establish necessary and sufficient conditions for the boundedness of the commutators [b, Mα,κ] and [b, M#κ] on Orlicz
spaces when the symbol function b belongs to a Lipschitz space, thereby obtaining new characterizations of nonnegative Lipschitz functions.
Furthermore, we extend a classical result of Janson to the Dunkl framework by proving that the commutator of the Dunkl-Riesz transform, [b, Rj], is bounded from Lκp(Rd) to Lκq(Rd), where 1 < p < q < ∞ and 1/q = 1/p - β/N, if and only if the symbol b ∈ Lip(β).
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| Acknowledgements
The first author was supported by the National Natural Science
Foundation of China (Grant No. 12301115) and the third author was supported
by Zhejiang Provincial Natural Science Foundation of China (No. LZ24A010004).
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| Author information
Shaoyong He
Department of Mathematics
Huzhou Normal University
Huzhou 313000, China
hsyongmath@sina.com
Lei Wang
Department of Mathematics
Huzhou Normal University
Huzhou 313000, China
wanglei112025@163.com
Yun Fan
Department of Mathematics
Huzhou Normal University
Huzhou 313000, China
fanyun@huznu.edu.cn
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