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math.GR2022
Arithmetic subgroups of Chevalley group schemes over function fields I: quotients of the Bruhat-Tits building by -arithmetic subgroups
Claudio Bravo, Benoit Loisel
Let be a reductive Chevalley group scheme (defined over ). Let be a smooth, projective, geometrically integral curve over a field $\mathbb{F}…
math.GR2022
Quotients of the Bruhat-Tits tree by function field analogs of the Hecke congruence subgroups
Claudio Bravo
Let C be a smooth, projective and geometrically integral curve defined over a finite field F. For each closed point P of C, let R be the ring of functions that are regular outside…