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On a (terminally connected, pro-etale) factorization of geometric morphisms
Published 6 Feb 2025 in math.CT | (2502.04213v1)
Abstract: We extend the classical (connected, etale) factorization of locally connected geometric morphisms into a (terminally connected, pro-etale) factorization for all geometric morphisms between Grothendieck topoi. We discuss properties of both classes of morphisms, particularly the relation between pro-etale geometric morphisms and the category of global elements of their inverse image; we also discuss their stability properties as well as some fibrational aspects.
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