Timeline for What is 'formal' ?
Current License: CC BY-SA 2.5
6 events
| when toggle format | what | by | license | comment | |
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| Feb 1, 2010 at 8:41 | history | edited | Agustí Roig | CC BY-SA 2.5 |
edited body
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| Jan 27, 2010 at 23:29 | history | edited | Kevin H. Lin | CC BY-SA 2.5 |
fixed typo
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| Jan 26, 2010 at 20:14 | comment | added | Tyler Lawson | For spaces that are "nilpotent" rather than simply connected, there is a theory that is basically as good but harder to state. For general spaces the construction of a "rational homotopy type" is much harder because, e.g., it is hard to say what a "rational isomorphism" between the fundamental groups of two spaces should be. | |
| Jan 26, 2010 at 19:34 | comment | added | Kevin H. Lin | Do you know anything about what happens for spaces or manifolds that are not simply connected? | |
| Jan 26, 2010 at 19:18 | history | edited | Agustí Roig | CC BY-SA 2.5 |
added 1 characters in body
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| Jan 26, 2010 at 19:11 | history | answered | Agustí Roig | CC BY-SA 2.5 |