20 citations · 35 across the 9 of their papers we have counts for
14 papers · 1 filter
Upper endpoint estimates and extrapolation for commutators
Kangwei Li, Sheldy Ombrosi, Israel P. Rivera-Ríos
In this note we revisit the upper endpoint estimates for commutators following the line by Harboure, Segovia and Torrea. Relying upon the suitable BMO subspace suited for the commu…
Some quantitative one-sided weighted estimates
María Lorente, Francisco J. Martín-Reyes, Israel P. Rivera-Ríos
In this paper we provide some quantitative one-sided estimates that recover the dependences in the classical setting. Among them we provide estimates for the one-sided maximal func…
A class of multilinear bounded oscillation operators on measure spaces and applications
Mingming Cao, Gonzalo Ibañez-Firnkorn, Israel P. Rivera-Ríos +2
In this paper, we develop a comprehensive weighted theory for a class of Banach-valued multilinear bounded oscillation operators on measure spaces, which merges multilinear Calderó…
Quantitative matrix weighted estimates for certain singular integral operators
Pamela A. Muller, Israel P. Rivera-Ríos
In this paper quantitative weighted matrix estimates for vector valued extensions of -Hörmander operators and rough singular integrals are studied. Strong type esti…
Quantitative John-Nirenberg inequalities at different scales
Javier C. Martínez-Perales, Ezequiel Rela, Israel P. Rivera-Ríos
We provide an abstract estimate of the form \[ \|f-f_{Q,μ}\|_{X \left(Q,\frac{\mathrm{d} μ}{Y(Q)}\right)}\leq c(μ,Y)ψ(X)\|f\|_{\mathrm{BMO}(\mathrm{d}μ)} \] for all cubes in $\…
On two weight estimates for iterated commutators
Andrei K. Lerner, Sheldy Ombrosi, Israel P. Rivera-Ríos
In this paper we extend the bump conjecture and a particular case of the separated bump conjecture with logarithmic bumps to iterated commutators . Our results are new even…
Fefferman-Stein inequalities for the Hardy-Littlewood maximal function on the infinite rooted -ary tree
Sheldy Ombrosi, Israel P. Rivera-Ríos, Martín D. Safe
In this paper weighted endpoint estimates for the Hardy-Littlewood maximal function on {the infinite rooted} -ary tree are provided. Motivated by Naor and Tao the following Feff…
Sharp weighted estimates for vector valued operators
Joshua Isralowitz, Sandra Pott, Israel P. Rivera-Ríos
Given quantitative weighted L^p estimates, in terms of Aq weights, for vector valued maximal functions, Calderón-Zygmund operators, commutators and maximal rough…
Weak endpoint bounds for matrix weights
David Cruz-Uribe, Joshua Isralowitz, Kabe Moen +2
We prove quantitative matrix weighted endpoint estimates for the matrix weighted Hardy-Littlewood maximal operator, Calderón-Zygmund operators, and commutators of CZOs with scalar…
A sparse approach to mixed weak type inequalities
Marcela Caldarelli, Israel P. Rivera-Ríos
In this paper we provide some quantitative mixed-type estimates assuming conditions that imply that for Calderón-Zygmund operators, rough singular integrals and…
On Bloom type estimates for iterated commutators of fractional integrals
Natalia Accomazzo, Javier C. Martínez-Perales, Israel P. Rivera-Ríos
In this paper we provide quantitative Bloom type estimates for iterated commutators of fractional integrals improving and extending results from a work of Holmes, Rahm and Spencer.…
Sparse and weighted estimates for generalized Hörmander operators and commutators
Gonzalo H. Ibañez-Firnkorn, Israel P. Rivera-Ríos
In this paper we obtain a pointwise sparse domination for generalized Hörmander operators and also for iterated commutators with those operators. As a particular case of our result…
On pointwise and weighted estimates for commutators of Calderón-Zygmund operators
Andrei K. Lerner, Sheldy Ombrosi, Israel P. Rivera-Ríos
In recent years, it has been well understood that a Calderón-Zygmund operator is pointwise controlled by a finite number of dyadic operators of a very simple structure (called…
Three observations on commutators of Singular Integral Operators with BMO functions
Carlos Pérez, Israel P. Rivera-Ríos
This paper contains three observations on commutators of Singular Integral Operators with BMO functions: 1) The subgaussian local decay for the commutator, namely \[\frac{1}{|Q|}\l…