activity
20132026
most citedRegularity results and Harnack inequalities for minimizers and solutions of nonlocal problems: a unified approach via fractional De Giorgi classes

107 citations · 369 across the 19 of their papers we have counts for

collaborators

23 papers

math.AP2026

A half-space theorem for nonlocal minimal surfaces

Matteo Cozzi, Jack Thompson

We establish a half-space theorem à la Hoffman and Meeks for nonlocal minimal surfaces. Differently from the classical case, our result holds in every dimension.

math.AP2026

A fractional De Giorgi isoperimetric type inequality

Matteo Cozzi, Tomás Sanz-Perela

We establish an isoperimetric type inequality for the level sets of functions in fractional Sobolev spaces. This answers a question posed by the first author in a previous paper. T…

math.AP2023

Global gradient regularity and a Hopf lemma for quasilinear operators of mixed local-nonlocal type

Carlo Alberto Antonini, Matteo Cozzi

We address some regularity issues for mixed local-nonlocal quasilinear operators modeled upon the sum of a -Laplacian and of a fractional -Laplacian. Under suitable assu…

math.AP2023

A quantitative version of the Gidas-Ni-Nirenberg Theorem

Giulio Ciraolo, Matteo Cozzi, Matteo Perugini +1

A celebrated result by Gidas, Ni & Nirenberg asserts that classical positive solutions to semilinear equations in a ball vanishing at the boundary must be radial and…

math.AP2022

Non-uniqueness for the nonlocal Liouville equation in and applications

Luca Battaglia, Matteo Cozzi, Antonio J. Fernández +1

We construct multiple solutions to the nonlocal Liouville equation \begin{equation} \label{eqk} \tag{L} (-Δ)^{\frac{1}{2}} u = K(x) e^u \quad \mbox{ in } \mathbb{R}. \end{equation}…

math.AP2022

Blowing-up solutions for a nonlocal Liouville type equation

Matteo Cozzi, Antonio J. Fernández

We consider the nonlocal Liouville type equation $$ (-Δ)^{\frac{1}{2}} u = \varepsilon κ(x) e^u, \quad u > 0, \quad \mbox{in } I, \qquad u = 0, \quad \mbox{in } \mathbb{R} \setminu…