8 papers
Boundary regularity of harmonic functions in slit domains
Joan Domingo-Pasarin, Pablo Hidalgo-Palencia, Alejandro Martínez +1
We establish precise upper and lower estimates for harmonic functions vanishing on the slit of a slit domain, with no assumption that the slit lies in a hyperplane. The class…
Parabolic uniform rectifiability is characterized by Carleson measure estimates for bounded caloric functions
Simon Bortz, Pablo Hidalgo-Palencia, Steve Hofmann +1
We show that the parabolic uniform rectifiability of a set can be characterized by an interior PDE property, namely Carleson measure estimates for bounded solutions to the heat equ…
The parabolic Dirichlet problem with continuous and Hölder boundary data, and rough coefficients
Pablo Hidalgo-Palencia, Cody Hutcheson, Joseph Kasel
We provide very mild sufficient conditions for space-time domains (non-necessarily cylindrical) which ensure that the continuous Dirichlet problem and the Hölder Dirichlet problem…
A Variable Coefficient Free Boundary Problem for -solvability of Parabolic Dirichlet Problems in Graph Domains
Simon Bortz, Sandra Ferris, Pablo Hidalgo-Palencia +1
We investigate variable coefficient analogs of a recent work of Bortz, Hofmann, Martell and Nyström [BHMN25]. In particular, we show that if is the region above the graph of a…
Positive solutions to general semilinear overdetermined boundary problems
Alberto Enciso, Pablo Hidalgo-Palencia, Xavier Ros-Oton
We establish the existence of positive solutions to a general class of overdetermined semilinear elliptic boundary problems on suitable bounded open sets . Sp…
Elliptic operators in rough sets, and the Dirichlet problem with boundary data in Hölder spaces
Mingming Cao, Pablo Hidalgo-Palencia, José María Martell +2
In this paper we study the Dirichlet problem for real-valued second order divergence form elliptic operators with boundary data in Hölder spaces. Our context is that of open sets $…
On the Kato problem for elliptic operators in non-divergence form
Luis Escauriaza, Pablo Hidalgo-Palencia, Steve Hofmann
We consider the Kato square root problem for non-divergence second order elliptic operators , and, especially, the normalized adjoints of such operators. In par…
Carleson measure estimates, corona decompositions, and perturbation of elliptic operators without connectivity
Mingming Cao, Pablo Hidalgo-Palencia, José María Martell
Let be an open set with Ahlfors-David regular boundary satisfying the corkscrew condition. When is connected in some quantitative form one can establish that for any real e…