A new elliptic measure on lower dimensional sets

G David, J Feneuil, S Mayboroda - Acta Mathematica Sinica, English …, 2019 - Springer
The recent years have seen a beautiful breakthrough culminating in a comprehensive
understanding of certain scale-invariant properties of n− 1 dimensional sets across analysis …

Generalized Carleson perturbations of elliptic operators and applications

J Feneuil, B Poggi - Transactions of the American Mathematical Society, 2022 - ams.org
We extend in two directions the notion of perturbations of Carleson type for the Dirichlet
problem associated to an elliptic real second-order divergence-form (possibly degenerate …

Semi-Uniform Domains and the A Property for Harmonic Measure

J Azzam - International Mathematics Research Notices, 2021 - academic.oup.com
We study the properties of harmonic measure in semi-uniform domains. Aikawa and Hirata
showed in that, for John domains satisfying the capacity density condition (CDC), the …

Approximation of Green functions and domains with uniformly rectifiable boundaries of all dimensions

G David, S Mayboroda - Advances in Mathematics, 2022 - Elsevier
The present paper concerns divergence form elliptic and degenerate elliptic operators in a
domain Ω⊂ R n, and establishes the equivalence between the uniform rectifiability of the …

Square function estimates, the BMO Dirichlet problem, and absolute continuity of harmonic measure on lower-dimensional sets

S Mayboroda, Z Zhao - Analysis & PDE, 2019 - msp.org
In the recent work G. David, J. Feneuil, and the first author have launched a program
devoted to an analogue of harmonic measure for lower-dimensional sets. A relevant class of …

Dimension drop for harmonic measure on Ahlfors regular boundaries

J Azzam - Potential Analysis, 2020 - Springer
Dimension Drop for Harmonic Measure on Ahlfors Regular Boundaries Page 1 Potential
Analysis https://doi.org/10.1007/s11118-019-09796-6 Dimension Drop for Harmonic Measure on …

Quantitative absolute continuity of harmonic measure and the Dirichlet problem: a survey of recent progress

S Hofmann - Acta Mathematica Sinica, English Series, 2019 - Springer
It is a well-known folklore result that quantitative, scale invariant absolute continuity (more
precisely, the weak-A∞ property) of harmonic measure with respect to surface measure, on …

[PDF][PDF] Uniform rectifiability and elliptic operators satisfying a Carleson measure condition. Part II: The large constant case

S Hofmann, JM Martell, S Mayboroda, T Toro, Z Zhao - Preprint, 2020 - icmat.es
The present paper, along with its companion [HMMTZ], establishes the correspondence
between the properties of the solutions of a class of PDEs and the geometry of sets in …

Carleson measure estimates and"-approximation for bounded harmonic functions, without Ahlfors regularity assumptions.

JB Garnett - Revista Mathematica Iberoamericana, 2022 - ems.press
Let be a domain in RdC1, where d 1. It is known that if satisfies a corkscrew condition and@
is d-Ahlfors regular, then the following are equivalent:(a) a square function Carleson …

Boundary value problems for second-order elliptic equations and related topics

BGP Cevallos - 2021 - search.proquest.com
We study perturbation results for boundary value problems for second-order elliptic partial
differential equations, and the exponential decay of solutions to generalized Schr\" odinger …