Timeline for What does the classifying space of a category classify?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Jun 22, 2019 at 1:59 | history | edited | John Baez | CC BY-SA 4.0 |
fixed typo: "principle bundle" should be "principal bundle".
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| Nov 11, 2013 at 11:19 | comment | added | Dmitri Pavlov | @PeterArndt: Michael Weiss gives a reference to Moerdijk's book in his paper and discusses the relationship between his result and Moerdijk's (they are not identical), so I don't think that the existence of Weiss's paper is astonishing. | |
| May 7, 2010 at 21:43 | comment | added | Don Stanley | I don't know the paper of Michael Weiss, however when I was writing the title of this question I had the feeling I have read this title before. So probably I at least read the title of that paper. | |
| May 7, 2010 at 16:50 | comment | added | Peter Arndt | I just took a look at the MathReview and am astonished - the result as stated there is completely contained in the book by Moerdijk which is 10 years older... | |
| May 7, 2010 at 16:01 | vote | accept | Don Stanley | ||
| S May 7, 2010 at 16:01 | vote | accept | Don Stanley | ||
| May 7, 2010 at 16:01 | |||||
| May 7, 2010 at 16:01 | vote | accept | Don Stanley | ||
| S May 7, 2010 at 16:01 | |||||
| May 7, 2010 at 15:31 | comment | added | villemoes | I suppose you already know the paper by Michael Weiss (MR2175298, Homology Homotopy Appl. 7 (2005), no. 1, 185--195) whose title is exactly the title of your question. | |
| May 7, 2010 at 14:43 | answer | added | Peter Arndt | timeline score: 26 | |
| May 7, 2010 at 14:39 | answer | added | Andrew Stacey | timeline score: 12 | |
| May 7, 2010 at 14:38 | comment | added | some guy on the street | Have sometimes wondered! Don't know; but note that another way to say "principle G-bundle" is "Sheaf of G-torsors"; unless C is a groupoid (and even then) it's difficult to imagine what's the right notion for Torsor; one day should read HTT and see how the multi-object picture works. BG also comes with a natural principle bundle $EG\to BG$ with $EG$ contractible as a space --- it's easy to build a contractible space mimicking the group construction, but describing a good map to $BG$ is again difficult without significant assumptions. | |
| May 7, 2010 at 14:22 | history | asked | Don Stanley | CC BY-SA 2.5 |