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arXiv 1702.01070math.AP
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伪微分算子的域:Triebel-Lizorkin空间的一个例子

Domains of pseudo-differential operators: a case for the Triebel--Lizorkin spaces

Jon Johnsen

摘要:

主要结果是:从Triebel-Lizorkin空间$F^d_{p,1}$到$L_p$,$1\le p<\infty$,每一个1,1阶伪微分算子都是连续的,并且在Besov和Triebel-Lizorkin尺度下是最优的,证明了$s>d$的已知连续性,而对于所有的实$s$,Hörmander条件在扭对角线上的充分性被带到Besov和Triebel-Lizorkin框架中。为了实现这一点,1,1型算子被扩展到具有紧谱的分布,并且这种类型的傅立叶变换算子在这样的分布上被证明满足支持规则,推广了卷积的规则。因此,使用减少的符号,介绍了Coifman和迈耶,取代直接应用的paradifferential方法。文献中的一些缺陷已被发现和纠正。

英文摘要:

The main result is that every pseudo-differential operator of type 1,1 and order $d$ is continuous from the Triebel--Lizorkin space $F^d_{p,1}$ to $L_p$, $1\le p<\infty$, and that this is optimal within the Besov and Triebel--Lizorkin scales.The proof also leads to the known continuity for $s>d$, while for all real $s$ the sufficiency of Hörmander's condition on the twisted diagonal is carried over to the Besov and Triebel--Lizorkin framework. To obtain this, type 1,1-operators are extended to distributions with compact spectrum, and Fourier transformed operators of this type are on such distributions proved to satisfy a support rule, generalising the rule for convolutions. Thereby the use of reduced symbols, as introduced by Coifman and Meyer, is replaced by direct application of the paradifferential methods. A few flaws in the literature have been detected and corrected.

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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