Showing math.APShow all
2 papers · 1 filter
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
Periodic solutions to integro-differential equations: variational formulation, symmetry, and regularity
Xavier Cabre, Gyula Csató, Albert Mas
We consider nonconstant periodic constrained minimizers of semilinear elliptic equations for integro-differential operators in . We prove that, after an appropriate tra…