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20142024
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math.AP2024

Brezis-Nirenberg-type results for the anisotropic -Laplacian

Stefano Biagi, Francesco Esposito, Alberto Roncoroni +1

In this paper we consider a quasilinear elliptic and critical problem with Dirichlet boundary conditions in presence of the anisotropic -Laplacian. The critical exponent is the…

math.AP2024

On mixed local-nonlocal problems with Hardy potential

Stefano Biagi, Francesco Esposito, Luigi Montoro +1

In this paper we study the effect of the Hardy potential on existence, uniqueness and optimal summability of solutions of the mixed local-nonlocal elliptic problem $$-Δu + (-Δ)^s u…

math.AP2024

Global solutions to semilinear parabolic equations driven by mixed local-nonlocal operators

Stefano Biagi, Fabio Punzo, Eugenio Vecchi

We are concerned with the Cauchy problem for the semilinear parabolic equation driven by the mixed local-nonlocal operator , with a power-like source term.…

math.AP2024

Phragmèn-Lindelöf type theorems for elliptic equations on infinite graphs

Stefano Biagi, Fabio Punzo

We investigate the validity of the Phragmèn-Lindelöf principle for a class of elliptic equations with a potential, posed on infinite graphs. Consequently, we get uniqueness, in the…

math.AP2024

On the existence of a second positive solution to mixed local-nonlocal concave-convex critical problems

Stefano Biagi, Eugenio Vecchi

We prove the existence of a second positive weak solution for mixed local-nonlocal critical semilinear elliptic problems with a sublinear perturbation in the spirit of [Ambrosetti,…

math.AP2023

A Liouville theorem for elliptic equations with a potential on infinite graphs

Stefano Biagi, Giulia Meglioli, Fabio Punzo

We investigate the validity of the Liouville property for a class of elliptic equations with a potential, posed on infinite graphs. Under suitable assumptions on the graph and on t…