Sean Cotner

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20222026

most citedHom schemes for algebraic groups

2 citations · 4 across the 8 of their papers we have counts for

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math.AG2023★ 2 cited

Hom schemes for algebraic groups

Sean Cotner

In SGA3, Demazure and Grothendieck showed that if $G$ and $H$ are smooth affine group schemes over a scheme $S$ and $G$ is reductive, then the functor of $S$ -homomorphism $G \to H$ …

math.RT2023

Morphisms of character varieties

Sean Cotner

Let $k$ be a field, let $H \subset G$ be (possibly disconnected) reductive groups over $k$ , and let $Γ$ be a finitely generated group. Vinberg and Martin have shown that the induce…