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20132026
most citedThe second eigenvalue of the fractional Laplacian

172 citations · 231 across the 17 of their papers we have counts for

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15 papers · 1 filter

math.AP2026

Symmetry of fractional Neumann eigenfunctions in the ball

Vladimir Bobkov, Enea Parini

We investigate symmetry properties of the first nontrivial eigenfunctions of the fractional Laplacian , where , in an -dimensional ball with nonlocal Neuman…

math.AP2025

On Hopf's Lemma for sign-changing supersolutions to fractional Laplacian equations

Azahara DelaTorre, Enea Parini

In this paper we investigate the validity of Hopf's Lemma for a (possibly sign-changing) function satisfying \[ (-Δ)^s u(x) \geq c(x)u(x) \quad \text{in }Ω,\] wher…

math.AP2023

Uniqueness of least energy solutions to the fractional Lane-Emden equation in the ball

Azahara DelaTorre, Enea Parini

We prove uniqueness of least-energy solutions to the fractional Lane-Emden equation, under homogeneous Dirichlet exterior conditions, when the underlying domain is a ball $B \subse…

math.AP2020

Nodal Solutions for sublinear-type problems with Dirichlet boundary conditions

Denis Bonheure, Ederson Moreira dos Santos, Enea Parini +2

We consider nonlinear second order elliptic problems of the type \[ -Δu=f(u) \text{ in } Ω, \qquad u=0 \text{ on } \partial Ω, \] where is an open -domain in $\mathbb{…

math.AP2020

Reverse Faber-Krahn inequality for a truncated laplacian operator

Enea Parini, Julio Rossi, Ariel Salort

In this paper we prove a reverse Faber-Krahn inequality for the principal eigenvalue of the fully nonlinear eigenvalue problem \[ \label{eq} \left\{\begin{array}{r c l l}…

math.AP2018

Compactness and dichotomy in nonlocal shape optimization

Enea Parini, Ariel Salort

We prove a general result about the behaviour of minimizing sequences for nonlocal shape functionals satisfying suitable structural assumptions. Typical examples include functions…