Timeline for Construct a 'nice' trivializing cover of universal principal $G$-bundle $EG \to BG$
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jan 17, 2023 at 18:50 | comment | added | John Rognes | This model for $EG$ is not a simplicial complex (as asserted in the question), since a simplex $[g_0, \dots, g_n]$ is only determined by its ordered set of vertices, not just its unordered set of vertices. A simplicial complex with only finitely many vertices must be finite dimensional, while $EG$ for finite, nontrivial $G$ must be infinite dimensional. | |
| Jan 16, 2023 at 23:58 | vote | accept | user267839 | ||
| Jan 16, 2023 at 23:58 | history | edited | user267839 | CC BY-SA 4.0 |
deleted 3 characters in body
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| Jan 16, 2023 at 23:57 | comment | added | user267839 | @MartinBrandenburg: nope, should be just the usual $\Delta$-complex | |
| Jan 16, 2023 at 22:15 | comment | added | Martin Brandenburg | Is the symbol $\triangle$ on purpose? (instead of $\Delta$) | |
| Jan 16, 2023 at 20:53 | answer | added | Tom Goodwillie | timeline score: 5 | |
| Jan 16, 2023 at 20:44 | answer | added | Dmitri Pavlov | timeline score: 4 | |
| Jan 16, 2023 at 19:15 | history | asked | user267839 | CC BY-SA 4.0 |