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arXiv 1904.03334math.FAmath.CA
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$L^\infty$上Dunkl变换的Dunkl平移、Dunkl型$BMO$空间和里斯变换

Dunkl translations, Dunkl-type $BMO$ space and Riesz transforms for Dunkl transform on $L^\infty$

Wentao Teng

摘要:

本文给出了关于紧支集上Dunkl平移的支集的一些结果。然后定义了$BMO$空间和$L^\infty$上的Dunkl变换的里斯变换,并在Dunkl变换的一致有界性假设下证明了从$L^\infty$到Dunkl型$BMO$空间的里斯变换的有界性.由于Dunkl变换缺乏与经典变换相似的性质,因此在Dunkl变换下的证明和定义比经典情形下的困难.我们还将推广的精确性的描述支持Dunkl翻译的特征函数的Gallardo和Rejeb的所有非负径向函数在$L^2(m_k)$。

英文摘要:

In this paper, we will give some results on the support of Dunkl translations on compactly supported functions. Then we will define Dunkl-type $BMO$ space and Riesz transforms for Dunkl transform on $L^\infty$, and prove the boundedness of Riesz transforms from $L^\infty$ to Dunkl-type $BMO$ space under the uniform boundedness assumption of Dunkl translations. The proof and the definition in Dunkl setting will be harder than in the classical case for the lack of some similar properties of Dunkl translations to that of classical translations. We will also extend the preciseness of the description of support of Dunkl translations on characteristic functions by Gallardo and Rejeb to that on all nonnegative radial functions in $L^2(m_k)$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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