Timeline for Is there always a universal bundle over a classifying space?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 13, 2016 at 13:18 | vote | accept | Jan Steinebrunner | ||
| Nov 6, 2016 at 21:22 | vote | accept | Jan Steinebrunner | ||
| Nov 13, 2016 at 13:17 | |||||
| Nov 6, 2016 at 21:22 | comment | added | Jan Steinebrunner | Thank you for clarifying which definition is usually used. As you mentioned it is meant to make the classifying map unique up to homotopy. The definition given in the arXiv article implies that the classifying morphism is unique up to homotopy (define a morphism on $X\times \{0,1\}$ and extend it to $X\times [0,1]$). It turns out that the definitions are often equivalent, see my answer below. Btw I read your book on simplicial objects in algebraic topology for my bachelor thesis learned a lot, thank you for writing | |
| Nov 5, 2016 at 20:50 | history | answered | Peter May | CC BY-SA 3.0 |