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Descent and generation for noncommutative coherent algebras over schemes
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Our work shows forms of descent, in the fppf, h and \'{e}tale topologies, for strong generation of the bounded derived category of a noncommutative coherent algebra over a scheme. Even for (commutative) schemes this yields new perspectives. As a consequence we exhibit new examples where these bounded derived categories admit strong generators. We achieve our main results by leveraging the action of the scheme on the coherent algebra, allowing us to lift statements into the noncommutative setting. In particular, this leads to interesting applications regarding generation for Azumaya algebras.
Forward citations
Cited by 2 Pith papers
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A hereditary order on a curve is shown to admit a strong C-linear semiorthogonal decomposition obtained from the deformation absorption of singularities in its fiber over a ramified point.
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