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arXiv 1609.07945math.AP
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$1,1$型算子的$L_p$ -理论

$L_p$-Theory of Type $1,1$-Operators

Jon Johnsen

摘要:

这是最近工作的延续一般定义的伪微分算子类型$1,1$,在霍曼德的意义。证明了在$L_p$ -索伯列夫空间和Hölder-Zygmund空间中,以及更一般的Besov和Lizorkin-Triebel空间中,正光滑算子的连续性,并推广到自伴子类中算子的任意光滑性。作为一个主要工具,我们将仿微分分解用于$1,1$型算子,并结合伪微分算子的谱支撑规则和Peetre-Festhman-Stein型极大函数的逐点估计.

英文摘要:

This is a continuation of recent work on the general definition of pseudo-differential operators of type $1,1$, in Hörmander's sense. Continuity in $L_p$-Sobolev spaces and Hölder--Zygmund spaces, and more generally in Besov and Lizorkin--Triebel spaces, is proved for positive smoothness, with extension to arbitrary smoothness for operators in the self-adjoint subclass. As a main tool the paradifferential decomposition is used for type $1,1$-operators in combination with the Spectral Support Rule for pseudo-differential operators and pointwise estimates in terms of maximal functions of Peetre--Fefferman--Stein type.

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