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arXiv · 1803.06965

The normal hull and commutator group for nonconnected group schemes

Giulia Battiston
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Abstract

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 $(G,H)$ is well defined for $H\subset G$ smooth, even when both of them are not connected.

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Giulia Battiston. 2018-03-19. The normal hull and commutator group for nonconnected group schemes. https://arxiv.org/abs/1803.06965

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