Special Session 35: Elliptic PDEs: singularities, discontinuities, and nonlinear phenomena

Nonlocal operators in divergence form and existence results for $L^1$ data
Caterina Sportelli
Universidad de Granada
Spain
Co-Author(s):    
Abstract:
In this talk, we study the existence and uniqueness of weak solutions to Dirichlet boundary value problems driven by a nonlocal operator in divergence form with data in $L^1(\Omega)$ that are suitably dominated. Moreover, we show that, as $s \nearrow 1$, the nonlocal solutions converge to the solution of the corresponding local problem, thereby recovering the classical theory as a limit case. The results presented in this talk are based on \cite{MR5007887}. \begin{thebibliography}{99} \bib{MR5007887} Arcoya, David, Dipierro, Serena, Proietti Lippi, Edoardo, Sportelli, Caterina, Valdinoci, Enrico, Nonlocal operators in divergence form and existence theory for integrable data, J. Funct. Anal., 290, 2026, 7, Paper No. 111317, 58, issn 0022-1236, MR{5007887}, doi{10.1016/j.jfa.2025.111317}, \end{thebibliography}