Pérez Moreno, Carlos2016-11-142016-11-142000Pérez Moreno, C. (2000). Sharp weighted inequalities for the vector-valued maximal function. Transactions of the American Mathematical Society, 352 (7), 3265-3288.0002-99471088-6850http://hdl.handle.net/11441/48510We prove in this paper some sharp weighted inequalities for the vector-valued maximal function Mq of Fefferman and Stein defined by Mqf(x) = X∞ i=1 (M fi(x))q !1/q, where M is the Hardy-Littlewood maximal function. As a consequence we derive the main result establishing that in the range 1 <q<p< ∞ there exists a constant C such that Z Rn Mqf(x)p w(x)dx ≤ C Z Rn |f(x)|p q M[ p q ]+1w(x)dx. Furthermore the result is sharp since M[ p q ]+1 cannot be replaced by M[ p q ]. We also show the following endpoint estimate w({x ∈ Rn : Mqf(x) > λ}) ≤ C λ Z Rn |f(x)|q Mw(x)dx, where C is a constant independent of λ.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1090/S0002-9947-99-02573-8