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arXiv · 1608.06571

Control of pseudodifferential operators by maximal functions via weighted inequalities

David Beltran
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Abstract

We establish general weighted $L^2$ inequalities for pseudodifferential operators associated to the H\"ormander symbol classes $S^m_{\rho,\delta}$. Such inequalities allow to control these operators by fractional "non-tangential" maximal functions, and subsume the optimal range of Lebesgue space bounds for pseudodifferential operators. As a corollary, several known Muckenhoupt type bounds are recovered, and new bounds for weights lying in the intersection of the Muckenhoupt and reverse H\"older classes are obtained. The proof relies on a subdyadic decomposition of the frequency space, together with applications of the Cotlar-Stein almost orthogonality principle and a quantitative version of the symbolic calculus.

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David Beltran. 2016-08-23. Control of pseudodifferential operators by maximal functions via weighted inequalities. https://arxiv.org/abs/1608.06571

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