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A characterization of finite \'etale morphisms in tensor triangular geometry

We provide a characterization of finite \'etale morphisms in tensor triangular geometry. They are precisely those functors which have a conservative right adjoint, satisfy Grothendieck--Neeman duality, and for which the relative dualizing object is trivial (via a canonically-defined map).

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Autore principale: Beren Sanders
Natura: Artigo
Lingua:Inglês
Pubblicazione: Association Epiga 2022-10-01
Serie:Épijournal de Géométrie Algébrique
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Accesso online:https://epiga.episciences.org/7641/pdf
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