On coherent topoi & coherent $1$-localic $\infty$-topoi

Abstract

In this note we prove the following useful fact that seems to be missing from the literature: the $\infty$-category of coherent ordinary topoi (in the sense of SGA4) is equivalent to the $\infty$-category of coherent $1$-localic $\infty$-topoi (in Lurie's sense). We also collect a number of examples of coherent geometric morphisms between $\infty$-topoi coming from algebraic geometry.

Comments very welcome. v2: 13 pages. Corrected some omissions and typos in v1 and clarified a few points. arXiv admin note: substantial text overlap with arXiv:1807.03281

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