3 papers
math.GR2025
Small Cancellation for Random Branched Covers of Groups
Hyeran Cho, Jean-François Lafont, Rachel Skipper
We construct a random model for an -fold branched cover of a finite acceptable -complex . This includes presentation -complexes for finitely presented groups satisfying…
math.DG2025
An explicit description of the Kähler-Einstein metrics of Guenancia-Hamenstädt
Jean-François Lafont, Barry Minemyer
Fine and Premoselli (FP) constructed the first examples of manifolds that do not admit a locally symmetric metric but do admit a negatively curved Einstein metric. The manifolds he…
math.GT2024
On signatures of the atoroidal bundles of Kent-Leininger
Jean-François Lafont, Nicholas Miller, Lorenzo Ruffoni
We show that there are infinitely many homeomorphism types of atoroidal surface bundles over surfaces which have signature zero.