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Translation operator and maximal function for the (k,1)-generalized Fourier transform
Journal of Functional Analysis ( IF 1.7 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.jfa.2020.108706
Salem Ben Saïd , Luc Deleaval

Abstract In this paper we study a translation operator associated with the n-dimensional ( k , 1 ) -generalized Fourier transform, where k is a multiplicity function for the Dunkl operators. In particular, we prove that the translation is a positivity-preserving operator acting on a suitable space of radial functions on R n . We then use it to define a Hardy-Littlewood type maximal operator, where weak-type ( 1 , 1 ) and strong-type ( p , p ) estimates for the maximal operator are established with a precise behavior in n and k.

中文翻译:

(k,1)-广义傅立叶变换的平移算子和极大函数

摘要 在本文中,我们研究了与 n 维 ( k , 1 ) 广义傅立叶变换相关的平移算子,其中 k 是 Dunkl 算子的重数函数。特别是,我们证明了平移是一个作用于 R n 上合适的径向函数空间的正性保持算子。然后我们使用它来定义一个 Hardy-Littlewood 类型的极大算子,其中极大算子的弱类型 (1, 1) 和强类型 (p, p) 估计是通过 n 和 k 中的精确行为建立的。
更新日期:2020-11-01
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