Loading web-font TeX/Math/Italic

The Stacks project

Situation 21.25.5. Let f : (\mathcal{C}, \mathcal{O}) \to (\mathcal{C}', \mathcal{O}') be a morphism of ringed sites. Let u : \mathcal{C}' \to \mathcal{C} be the corresponding continuous functor of sites. Let \mathcal{A} \subset \textit{Mod}(\mathcal{O}) be a weak Serre subcategory. We assume the following is true: there exists a subset \mathcal{B}' \subset \mathop{\mathrm{Ob}}\nolimits (\mathcal{C}') such that

  1. every object of \mathcal{C}' has a covering whose members are in \mathcal{B}', and

  2. for every V' \in \mathcal{B}' there exists an integer d_{V'} and a cofinal system \text{Cov}_{V'} of coverings of V' such that

    H^ p(u(V'_ i), \mathcal{F}) = 0 \text{ for } \{ V'_ i \to V'\} \in \text{Cov}_{V'},\ p > d_{V'}, \text{ and } \mathcal{F} \in \mathop{\mathrm{Ob}}\nolimits (\mathcal{A})


Comments (0)


Your email address will not be published. Required fields are marked.

In your comment you can use Markdown and LaTeX style mathematics (enclose it like $\pi$). A preview option is available if you wish to see how it works out (just click on the eye in the toolbar).

Unfortunately JavaScript is disabled in your browser, so the comment preview function will not work.

All contributions are licensed under the GNU Free Documentation License.