Timeline for In which situations can one see that topological spaces are ill-behaved from the homotopical viewpoint?
Current License: CC BY-SA 3.0
16 events
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Feb 7, 2012 at 4:31 | comment | added | Spice the Bird | I really enjoyed reading your question. | |
| Feb 6, 2012 at 22:45 | answer | added | Ronnie Brown | timeline score: 10 | |
| Oct 2, 2011 at 10:21 | history | edited | Jonathan Chiche | CC BY-SA 3.0 |
Added a translation in the idiom of perfide Albion; added 8 characters in body
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| Sep 28, 2011 at 2:59 | answer | added | Omar Antolín-Camarena | timeline score: 32 | |
| Sep 27, 2011 at 23:42 | answer | added | David Roberts♦ | timeline score: 10 | |
| Sep 27, 2011 at 18:23 | comment | added | Jonathan Chiche | Why do people post relevant answers as comments? The question is asking for a big list, so there isn't anything wrong with one sentence answers. | |
| Sep 27, 2011 at 18:21 | comment | added | Jonathan Chiche | Sorry for the previous lack of paragraph breaks. I have trouble with the preview mode. I hope it is more readable now. | |
| Sep 27, 2011 at 18:19 | history | edited | Jonathan Chiche | CC BY-SA 3.0 |
added 24 characters in body
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| Sep 27, 2011 at 15:01 | comment | added | Matthias Künzer | The failure of the Hauptvermutung comes to mind: Two triangulations (of a triangulable space) do not necessarily have a common refinement. | |
| Sep 27, 2011 at 14:19 | comment | added | Noah Stein | Can I recommend adding some paragraph breaks? | |
| Sep 27, 2011 at 14:12 | comment | added | Michael A Warren | This can be seen either as a symptom of or the cause for the defect mentioned in Harry Gindi's comment and I think is worth highlighting: Top is not cartesian closed. This is a sufficiently significant defect that one pretty much always works instead with the category of compactly generated spaces or some other cartesian closed variant of Top. See, e.g., Steenrod's paper "A convenient category of topological spaces" (Michigan Math. J. Volume 14, Issue 2 (1967), 133-152). | |
| Sep 27, 2011 at 13:50 | comment | added | Harry Gindi | Here's one: Top is not a topos. | |
| Sep 27, 2011 at 13:46 | history | edited | Jonathan Chiche | CC BY-SA 3.0 |
Corrected a typo and added English translation.
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| Sep 27, 2011 at 13:17 | history | edited | Jonathan Chiche |
edited tags
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| Sep 27, 2011 at 13:11 | history | asked | Jonathan Chiche | CC BY-SA 3.0 |