Timeline for Equivalence relations of topological spaces not comparable with homotopy [closed]
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 6, 2015 at 0:03 | comment | added | Todd Trimble | Expanding on Qiaochu's response: en.wikipedia.org/wiki/… | |
| Nov 6, 2015 at 0:01 | history | closed |
Eric Wofsey Stefan Kohl♦ András Bátkai Myshkin Ryan Budney |
Needs more focus | |
| Nov 6, 2015 at 0:00 | history | made wiki | Post Made Community Wiki by Todd Trimble | ||
| Nov 5, 2015 at 23:43 | comment | added | David Lampert | Same covering dimension | |
| Nov 5, 2015 at 21:56 | review | Close votes | |||
| Nov 6, 2015 at 0:01 | |||||
| Nov 5, 2015 at 21:33 | answer | added | Allen Hatcher | timeline score: 7 | |
| Nov 5, 2015 at 21:27 | comment | added | Aldo Guzmán Sáenz | @QiaochuYuan This is interesting! Can it be reduced to an equivalence of maps as in the question (we would ask for maps such that the two obvious compositions are related ---not necessarily equal--- to the respective identities)? Obviously we cannot ask for the compositions to be equal to the identities, because we then would have a homeomorphism. ("map" in the question means "continuous function"). | |
| Nov 5, 2015 at 21:15 | comment | added | Qiaochu Yuan | Having the same cardinality. | |
| Nov 5, 2015 at 20:47 | history | asked | Aldo Guzmán Sáenz | CC BY-SA 3.0 |