%0 Journal Article %A Chalopin, Jérémie %A Chepoi, Victor %A Genevois, Anthony %A Hirai, Hiroshi %A Osajda, Damian %T Helly groups %J Geometry & topology %D 2025 %P 1-70 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2025.29.1/ %R 10.2140/gt.2025.29.1 %F GT_2025_29_1_a0