Timeline for Non-abelian Ext functor and non-abelian $H^2$
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Aug 2, 2020 at 18:10 | comment | added | Denis Nardin | I think the general approach is sound, but all you need for the morphism to lift is that the extension is split (which doesn't mean it's trivial, since semidirect products exist), so you'll need done kind of pointed set of "extensions modulo splittings" | |
| Aug 2, 2020 at 17:53 | history | edited | Josh Lackman | CC BY-SA 4.0 |
added 118 characters in body
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| Aug 2, 2020 at 17:46 | history | answered | Josh Lackman | CC BY-SA 4.0 |