activity
20122025
most citedTamagawa Numbers and Other Invariants of Pseudo-reductive Groups Over Global Function Fields

5 citations · 10 across the 17 of their papers we have counts for

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3 papers · 1 filter

math.NT2025

Splitting p-primary cohomology classes of tori in characteristic p

Zev Rosengarten

We prove that -primary cohomology classes of a torus over a global function field of characteristic may be split by suitable separable -primary extensions. More preci…

math.AG2025

Extensions Of Unirational Groups

Zev Rosengarten

We undertake a study of extensions of unirational algebraic groups. We prove that extensions of unirational groups are also unirational over fields of degree of imperfection , b…

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…