Graph-based Nearest Neighbor Search in Hyperbolic Spaces. - Liudmila Prokhorenkova; Dmitry Baranchuk; Nikolay Bogachev; Yury Demidovich; Alexander Kolpakov (ICLR, 2022)

Kleinian sphere packings, reflection groups, and arithmeticity. - Nikolay Bogachev; Alexander Kolpakov; Alex Kontorovich (Math. Comput., 2023)