2 papers
math.CT2026
Presentability of categories of localizations and analytic rings
Wern Juin Gabriel Ong, Gabriel Ribeiro
We prove that certain categories of Bousfield localizations are presentable and give explicit regular cardinals for which they are -presentable. As an application, we show t…
math.AG2025
Extensions of Abelian Schemes and the Additive Group
Gabriel Ribeiro, Zev Rosengarten
We compute extension sheaves of abelian schemes and of the additive group by the multiplicative group in the fppf topology. Our main results include a generalized and streamlined p…