9 citations · 57 across the 23 of their papers we have counts for
4 papers · 2 filters
Polyhedral Horofunction Compactification as a Polyhedral Ball
Lizhen Ji, Anna-Sofie Schilling
In this paper we answer positively a question raised by Kapovich and Leeb in a paper titled "Finsler bordifications of symmetric and certain locally symmetric spaces". Specifically…
Actions of the Absolute Galois Group
Norbert A'Campo, Lizhen Ji, Athanase Papadopoulos
We review some ideas of Grothendieck and others on actions of the absolute Galois group Γ Q of Q (the automorphism group of the tower of finite extensions of Q), related to the geo…
On Grothendieck's tame topology
Norbert A'Campo, Lizhen Ji, Athanase Papadopoulos
Grothendieck's Esquisse d'un programme is often referred to for the ideas it contains on dessins d'enfants, the Teichm{ü}ller tower, and the actions of the absolute Galois group on…
On Grothendieck's construction of Teichmüller space
Norbert A'Campo, Lizhen Ji, Athanase Papadopoulos
In his 1944 paper Veränderliche Riemannsche Flächen , Teichmüller defined a structure of complex manifold on the set of isomorphism classes of marked closed Riemann surfaces of gen…