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Affine group dg-schemes and linear representations I - Basic theory and Tannakian reconstructions

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arxiv 1904.03162 v2 pith:DJWSN4DO submitted 2019-04-05 math.AG math.ATmath.QA

Affine group dg-schemes and linear representations I - Basic theory and Tannakian reconstructions

classification math.AG math.ATmath.QA
keywords linearrepresentationsaffinecategorydg-tensorgroupbasicdg-schemes
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We develop a basic theory of affine group dg-schemes, their Lie algebraic counterparts and linear representations. We prove Tannaka type reconstruction theorems that an affine group dg-scheme can be recovered from the dg-tensor category of its linear representations as well as from the rigid dg-tensor category of its finite dimensional linear representations along with the forgetful functors to the underlying dg-tensor category of cochain complexes.

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