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arXiv 1506.04883math.AP
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椭圆算子的谱乘子、Bochner-Riesz平均和一致Sobolev不等式

Spectral multipliers, Bochner-Riesz means and uniform Sobolev inequalities for elliptic operators

Adam Sikora, Lixin Yan, Xiaohua Yao

摘要:

本文分为两个部分。第一部分研究了一般抽象自伴算子下谱乘子和负指数Bochner-Riesz平均的$L^p$到$L^q$的界。第二章得到了常系数高阶椭圆算子$P(D)-z$和所有$z\in {\mathbb C}\backslash [0, \infty)$的一致Sobolev估计,推广了Kenig-Ruiz-Sogge \cite{KRS}的二阶结果.其次,我们利用扰动技巧证明了具有小可积势$V$的Schr dinger算子$P(D)+V$的一致Sobolev估计。最后,我们推导出所有这些运营商的谱乘子估计,包括尖锐的Bochner-Riesz求和结果。

英文摘要:

This paper comprises two parts. In the first, we study $L^p$ to $L^q$ bounds for spectral multipliers and Bochner-Riesz means with negative index in the general setting of abstract self-adjoint operators. In the second we obtain the uniform Sobolev estimates for constant coefficients higher order elliptic operators $P(D)-z$ and all $z\in {\mathbb C}\backslash [0, \infty)$, which give an extension of the second order results of Kenig-Ruiz-Sogge \cite{KRS}. Next we use perturbation techniques to prove the uniform Sobolev estimates for Schrödinger operators $P(D)+V$ with small integrable potentials $V$. Finally we deduce spectral multiplier estimates for all these operators, including sharp Bochner-Riesz summability results.

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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