3 papers
math.GR2026
Ring-induced localizations of nilpotent groups
Sergei O. Ivanov, Georgii Kadantsev, Aleksandr Krasilnikov
For a commutative ring , we study the -localization functor on the category of groups, defined as localization with respect to the homomorphism . Our main re…
math.AT2026
The discrete homotopy hypothesis for directed graphs
Briony Eldridge, Sergei O. Ivanov, Xiaomeng Xu +2
We develop a homotopy theory of directed graphs based on cubical homotopy groups, also known as -groups or reduced GLMY homotopy groups. Localizing the category of directed grap…
math.AT2025
Bousfield-Kan completion as a codensity -monad
Emmanuel Dror Farjoun, Sergei O. Ivanov
Working in the setting of -categories, we develop a general theory of the codensity monad associated with a full subcategory $\mathcal{D}\subseteq \mathcal{…