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arXiv 2103.08227math.FAmath.APmath.CA
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齐型空间上Besov和Triebel-Lizorkin空间的小波特征及其应用

Wavelet Characterization of Besov and Triebel--Lizorkin Spaces on Spaces of Homogeneous Type and Its Applications

Ziyi He, Fan Wang, Dachun Yang, Wen Yuan

摘要:

本文在Coifman和Weiss意义下建立了齐型空间$(X,d,μ)$上Besov和Triebel-Lizorkin空间的小波特征.在$X$上的Besov和Triebel-Lizorkin数列空间上引入了几乎对角算子,并得到了它们的有界性.利用这一小波特征和几乎对角算子的有界性,作者得到了Besov和Triebel-Lizorkin空间的分子特征。应用这一分子刻画,进一步建立了$X$上Triebel-Lizorkin空间的Littlewood-Paley刻画.本文的主要创新之处在于,充分利用了$X$的几何性质,这些结果摆脱了对$μ$的反向加倍性质和$d$的三角不等式的依赖,而$X$的几何性质是由它的拟度量$d$、并元参考点、并元立方体和小波表示的

英文摘要:

In this article, the authors establish the wavelet characterization of Besov and Triebel--Lizorkin spaces on a given space $(X,d,μ)$ of homogeneous type in the sense of Coifman and Weiss. Moreover, the authors introduce almost diagonal operators on Besov and Triebel--Lizorkin sequence spaces on $X$, and obtain their boundedness. Using this wavelet characterization and this boundedness of almost diagonal operators, the authors obtain the molecular characterization of Besov and Triebel--Lizorkin spaces. Applying this molecular characterization, the authors further establish the Littlewood--Paley characterizations of Triebel--Lizorkin spaces on $X$. The main novelty of this article is that all these results get rid of their dependence on the reverse doubling property of $μ$ and also the triangle inequality of $d$, by fully using the geometrical property of $X$ expressed via its equipped quasi-metric $d$, dyadic reference points, dyadic cubes, and wavelets

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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