Timeline for Representaility of morphism of stacks for schemes
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Apr 29, 2020 at 15:33 | answer | added | Praphulla Koushik | timeline score: 1 | |
| Apr 29, 2020 at 12:02 | history | edited | Conjecture | CC BY-SA 4.0 |
added 9 characters in body
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| Apr 29, 2020 at 11:34 | comment | added | Daniel Loughran | 2. and 3. are genuinely different in general. Just take $f: \mathcal{X} \to \mathrm{Spec} k$ an algebraic space over a field $k$ which is not a scheme. Then this is representable in the sense of 2., but not 3. For stacks definition 2. is the right one in general; sometimes authors refer to 3. as "strongly representable" or "schematic" to differentiate. | |
| Apr 29, 2020 at 11:04 | history | asked | Conjecture | CC BY-SA 4.0 |