43 citations · 65 across the 11 of their papers we have counts for
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math.MG2009★ 6 cited
Lipschitz extensions into Jet space Carnot groups
Stefan Wenger, Robert Young
The aim of this article is to prove a Lipschitz extension theorem for partially defined Lipschitz maps to jet spaces endowed with a left-invariant sub-Riemannian Carnot-Carathéodor…
math.MG2009★ 1 cited
Lipschitz non-extension theorems into jet space Carnot groups
Severine Rigot, Stefan Wenger
We prove non-extendability results for Lipschitz maps with target space being jet spaces equipped with a left-invariant Riemannian distance, as well as jet spaces equipped with a l…
math.MG2006
Characterizations of metric trees and Gromov hyperbolic spaces
Stefan Wenger
In a recent paper Chatterji and Niblo proved that a geodesic metric space is Gromov hyperbolic if and only if the intersection of any two closed balls has uniformly bounded eccentr…