On a fractional Alt-Caffarelli-Friedman-type monotonicity formula

Fuente: arXiv
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Autori principali: Ferrari, Fausto, Giovagnoli, Davide, Merlino, Enzo Maria
Natura: Preprint
Pubblicazione: 2025
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author Ferrari, Fausto
Giovagnoli, Davide
Merlino, Enzo Maria
author_facet Ferrari, Fausto
Giovagnoli, Davide
Merlino, Enzo Maria
contents In this note, by exploiting mean value properties of $s$-harmonic functions, we introduce some monotonicity formulas in the nonlocal setting. We take into account intrinsically nonlocal functionals mimicking those introduced by Alt, Caffarelli and Friedman in the seminal work [Alt-Caffarelli-Friedman, Trans. Amer. Math. Soc. (1984)]. Our approach is purely nonlocal and does not rely on the extension technique. As a byproduct we also established interior nonlocal gradient estimates and a nonlocal analogue of the Bochner identity.
format Preprint
id arxiv_https___arxiv_org_abs_2509_25891
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On a fractional Alt-Caffarelli-Friedman-type monotonicity formula
Ferrari, Fausto
Giovagnoli, Davide
Merlino, Enzo Maria
Analysis of PDEs
35R35, 35R11, 34K37
In this note, by exploiting mean value properties of $s$-harmonic functions, we introduce some monotonicity formulas in the nonlocal setting. We take into account intrinsically nonlocal functionals mimicking those introduced by Alt, Caffarelli and Friedman in the seminal work [Alt-Caffarelli-Friedman, Trans. Amer. Math. Soc. (1984)]. Our approach is purely nonlocal and does not rely on the extension technique. As a byproduct we also established interior nonlocal gradient estimates and a nonlocal analogue of the Bochner identity.
title On a fractional Alt-Caffarelli-Friedman-type monotonicity formula
topic Analysis of PDEs
35R35, 35R11, 34K37
url https://arxiv.org/abs/2509.25891