Timeline for fpqc covers of stacks
Current License: CC BY-SA 2.5
7 events
when toggle format | what | by | license | comment | |
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Feb 16, 2010 at 3:09 | vote | accept | Matt Satriano | ||
Feb 16, 2010 at 2:29 | history | edited | BCnrd | CC BY-SA 2.5 |
added 13 characters in body
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Feb 14, 2010 at 20:10 | comment | added | Thanos D. Papaïoannou | Is at least this variant of Artin's theorem true? Let $X$ be a quasi-separated étale sheaf which admits a surjective fpqc morphism from a scheme; then $X$ is an algebraic space, i.e. $X$ admits a surjective étale cover by a scheme. | |
Feb 14, 2010 at 19:53 | comment | added | Thanos D. Papaïoannou | My comment clarified an earlier comment by user fpqc—also known as Harry Gindi—about the kind of descent that algebraic spaces satisfied automatically; but that comment is now deleted, so mine stands incongruous. | |
Feb 14, 2010 at 18:27 | history | edited | BCnrd | CC BY-SA 2.5 |
Fixed typos
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Feb 14, 2010 at 18:19 | comment | added | Bhargav | Is there an example if X is assumed to be locally of finite presentation (commutes with filtered colimits of rings)? Also, should the second sentence of paragraph 4 should read S -> BG instead of G -> BG? | |
Feb 14, 2010 at 16:55 | history | answered | BCnrd | CC BY-SA 2.5 |