activity
20152026
most citedThe Sparse T1 Theorem

25 citations · 58 across the 13 of their papers we have counts for

collaborators

15 papers

math.PR2026

The martingale representation theorem for cylindrical martingale valued measures

S. Cambronero, D. Campos, C. A. Fonseca-Mora +1

We prove a martingale representation theorem for cylindrical martingale-valued measures defined on a separable Banach space. The main tool for establishing the theorem, is a new th…

math.PR2026

Markov property and path regularity for the solutions to SPDEs driven by cylindrical-martingale valued measures

Santiago Cambronero, David Campos, C. A. Fonseca-Mora +1

In this paper we prove the Markov property for the solution to stochastic partial differential equations driven by a cylindrical orthogonal martingale-valued measure. We assume our…

math.NT2026

Szemerédi's Theorem Along Cantor Sets of Integers

Alex Burgin, Anastasios Fragkos, Michael T. Lacey +2

Let be Cantor set of integers, that is a set of integers with restricted digits modulo a base , and suppose is one of the restricted digit…

math.DS2026

Integer Cantor Sets: Arithmetic Combinatorial Properties

Alex Burgin, Anastasios Fragkos, Michael T. Lacey +2

Cantor sets of integers have a rich set of arithmetic combinatorial properties. We consider classical Cantor sets, with a base and a fixed set of allowed digits. For such sets, we…

math.CA2025

Weighted Weak Type estimates for non-integral Square Functions

Dario Mena, Maria Carmen Reguera, Luz Roncal

We provide quantitative weighted weak type estimates for non-integral square functions in the critical case in terms of the and reverse Hölder constants associated to t…

math.PR2024

Itô's Formula for Itô processes defined with respect to a cylindrical-martingale valued measure

Santiago Cambronero, David Campos, C. A. Fonseca-Mora +1

Using the authors' recently developed stochastic integration [Stoch PDE: Anal Comp, 2024], we prove an Itô formula for Hilbert space-valued Itô processes defined with respect to a…

math.FA2023

Riesz spaces of signed charges on semi-rings

Santiago Cambronero, David Campos, C. A. Fonseca-Mora +1

A constructive definition of the supremum of a family of set functions is exploited in the context of Riesz spaces of signed measures and finitely additive functions (signed charge…

math.PR2023

Cylindrical Martingale-Valued Measures, Stochastic Integration and SPDEs

Santiago Cambronero, David Campos, C. A. Fonseca-Mora +1

We develop a theory of Hilbert-space valued stochastic integration with respect to cylindrical martingale-valued measures. As part of our construction, we expand the concept of qua…

math.DS2023★ 2 cited

A nonlinear relapse model with disaggregated contact rates: analysis of a forward-backward bifurcation

Jimmy Calvo-Monge, Fabio Sanchez, Juan G. Calvo +1

We developed a nonlinear differential equation model to explore the dynamics of relapse phenomena. Our incidence rate function is formulated, taking inspiration from recent adaptiv…

math.CA2018★ 6 cited

Lacunary Discrete Spherical Maximal Functions

Robert Kesler, Michael T. Lacey, Dario Mena

We prove new bounds for discrete spherical averages in dimensions . We focus on the case of lacunary radii, first for general lacunary radii…

math.CA2018★ 9 cited

Sparse Bounds for the Discrete Spherical Maximal Function

Robert Kesler, Michael T. Lacey, Darío Mena

We prove sparse bounds for the spherical maximal operator of Magyar, Stein and Wainger. The bounds are conjecturally sharp, and contain an endpoint estimate. The new method of proo…

math.CA2017★ 14 cited

Sparse Bounds for Bochner-Riesz Multipliers

Michael T. Lacey, Darío Mena, Maria Carmen Reguera

The Bochner-Riesz multipliers on are shown to satisfy a range of sparse bounds, for all . The range of sparse bounds increases to th…

math.CA2017★ 2 cited

Sparse Bounds for Discrete Quadratic Phase Hilbert Transform

Robert Kesler, Darío Mena

Consider the discrete quadratic phase Hilbert Transform acting on finitely supported functions We pro…

math.CA2016★ 25 cited

The Sparse T1 Theorem

Michael T. Lacey, Darío Mena

We impose standard -type assumptions on a Calderón-Zygmund operator , and deduce that for bounded compactly supported functions there is a sparse bilinear form…

math.CV2015

Characterization of two parameter matrix-valued BMO by commutator with the Hilbert transform

Darío Mena

In this paper we prove that the space of two parameter, matrix-valued BMO functions can be characterized by considering iterated commutators with the Hilbert transform. Specificall…