activity
20242026
collaborators

5 papers

math.AP2026

Regularity theory for fully nonlinear oblique transmission problems

Iñigo U. Erneta

We develop a regularity theory for fully nonlinear oblique transmission problems. Our main result establishes the optimal regularity of viscosity solutions for flat interfaces. For…

math.AP2026

Fully nonlinear oblique transmission problems: Well-posedness

Iñigo U. Erneta

We introduce elliptic transmission problems involving fully nonlinear equations in both the interior bulk equations and the interface transmission condition. In contrast to all pre…

math.AP2025

Null-Lagrangians and calibrations for general nonlocal functionals and an application to the viscosity theory

Xavier Cabre, Iñigo U. Erneta, Juan-Carlos Felipe-Navarro

In this article we build a null-Lagrangian and a calibration for general nonlocal elliptic functionals in the presence of a field of extremals. Thus, our construction assumes the e…

math.AP2024

Boundary Hölder continuity of stable solutions to semilinear elliptic problems in domains

Iñigo U. Erneta

This article establishes the boundary Hölder continuity of stable solutions to semilinear elliptic problems in the optimal range of dimensions , for domains. W…

math.AP2024

Lipschitz regularity for Poisson equations involving measures supported on interfaces

Iñigo U. Erneta, María Soria-Carro

We prove optimal Lipschitz regularity of solutions to Poisson's equation with measure data supported on a interface and with