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Two weighted inequalities for operators associated to a critical radius function. (English) Zbl 1442.42043

Summary: In the general framework of \(\mathbb{R}^d\) equipped with Lebesgue measure and a critical radius function, we introduce several Hardy-Littlewood type maximal operators and related classes of weights. We prove appropriate two weighted inequalities for such operators as well as a version of Lerner’s inequality for a product of weights. With these tools we are able to prove factored weight inequalities for certain operators associated to the critical radius function. As it is known, the harmonic analysis arising from the Schrödinger operator \(L=-\Delta+V\), as introduced by Z. Shen [J. Funct. Anal. 167, No. 2, 521–564 (1999; Zbl 0936.35051)], is based on the use of a related critical radius function. When our previous result is applied to this case, it allows to show some inequalities with factored weights for all first and second order Schrödinger-Riesz transforms.

MSC:

42B25 Maximal functions, Littlewood-Paley theory
42B20 Singular and oscillatory integrals (Calderón-Zygmund, etc.)
35J10 Schrödinger operator, Schrödinger equation

Citations:

Zbl 0936.35051

References:

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