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arXiv · 2106.14066

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

Beren Sanders
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Abstract

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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Beren Sanders. 2021-06-26. A characterization of finite \'etale morphisms in tensor triangular geometry. https://doi.org/10.46298/epiga.2022.volume6.7641

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