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math.AG2018★ 2 cited
Representations of Affine Group Schemes Over General Rings
Giulia Battiston, Matthieu Romagny
Among all affine, flat, finitely presented group schemes, we focus on those that are pure, this includes all groups which are extensions of a finite locally free group by a group w…
math.AG2018
The normal hull and commutator group for nonconnected group schemes
Giulia Battiston
In this short note, we prove that there is a well behaved notion of normal hull for smooth algebraic group schemes over a field and that the commutator group is well define…