activity
20062023
most citedLocal regularity properties of almost- and quasiminimal sets with a sliding boundary condition

10 citations · 37 across the 19 of their papers we have counts for

collaborators

24 papers

math.AP2023

Cantor sets with absolutely continuous harmonic measure

Guy David, Cole Jeznach, Antoine Julia

We construct Ahlfors regular Cantor sets of small dimension in the plane, such that the Hausdorff measure on is equivalent to the harmonic measure associated to its complem…

math.MG2023

A non-injective Assouad-type theorem with sharp dimension

Guy C. David

Lipschitz light maps, defined by Cheeger and Kleiner, are a class of non-injective "foldings" between metric spaces that preserve some geometric information. We prove that if a met…

math.AP2022

Branch Points for (Almost-)Minimizers of Two-Phase Free Boundary Problems

Guy David, Max Engelstein, Mariana Smit Vega Garcia +1

We study the existence and structure of branch points in two-phase free boundary problems. More precisely, we construct a family of minimizers to an Alt- Caffarelli-Friedman type f…

math.CA2022

Quantitative differentiation and the medial axis

Guy C. David, Kevin Hook

We study the medial axis of a set in Euclidean space (the set of points in space with more than one closest point in ) from a "coarse" and "quantitative" perspective. We sho…

math.CA2021

Quantitative straightening of distance spheres

Guy C. David, McKenna Kaczanowski, Dallas Pinkerton

We study "distance spheres": the set of points lying at constant distance from a fixed arbitrary subset of . We show that, away from the regions where is "too dens…

math.MG2021

Bi-Lipschitz embeddings of quasiconformal trees

Guy C. David, Sylvester Eriksson-Bique, Vyron Vellis

A quasiconformal tree is a doubling metric tree in which the diameter of each arc is bounded above by a fixed multiple of the distance between its endpoints. In this paper we show…