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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Showing 2024Show all

3 papers · 1 filter

math.AG2024

The Restricted Picard Functor

Zev Rosengarten

We prove in significant generality the (almost-)representability of the Picard functor when restricted to smooth test schemes. The novelty lies in the fact that we prove such (almo…

math.AG2024

(Non-)Extendability of Abel-Jacobi Maps

Zev Rosengarten

We investigate the "natural" locus of definition of Abel-Jacobi maps. In particular, we show that, for a proper, geometrically reduced curve C -- not necessarily smooth -- the Abel…

math.AG2024

Algebraic Groups with Torsors That Are Versal for All Affine Varieties

Uriya A. First, Mathieu Florence, Zev Rosengarten

Let be a field and let be an affine algebraic group over . Call a -torsor weakly versal for a class of -schemes if it specializes to every -torsor over…