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Sparse domination of singular Radon transform
Journal de Mathématiques Pures et Appliquées ( IF 2.1 ) Pub Date : 2020-03-23 , DOI: 10.1016/j.matpur.2020.03.012 Bingyang Hu
中文翻译:
Radon变换的稀疏控制
更新日期:2020-03-23
Journal de Mathématiques Pures et Appliquées ( IF 2.1 ) Pub Date : 2020-03-23 , DOI: 10.1016/j.matpur.2020.03.012 Bingyang Hu
The purpose of this paper is to study the sparse bound of the operator of the form , where is a function defined on a neighborhood of the origin in , satisfying , ψ is a cut-off function supported on a small neighborhood of and K is a Calderón-Zygmund kernel supported on a small neighborhood of . Christ, Nagel, Stein and Wainger gave conditions on γ under which is bounded. Under the these same conditions, we prove sparse bounds for T, which strengthens their result. As a corollary, we derive weighted norm estimates for such operators.
中文翻译:
Radon变换的稀疏控制
本文的目的是研究形式算子的稀疏界 ,在哪里 是一个 在以下位置的原点附近定义的函数 ,令人满意 ,ψ是一个 在以下地区的小社区上支持截止功能 和ķ是支持的一小附近卡尔德龙,上Zygmund内核。Christ,Nagel,Stein和Wainger给出了关于γ的条件有界。在这些相同条件下,我们证明了T的稀疏边界,这加强了它们的结果。作为推论,我们得出了此类算子的加权范数估计。