Timeline for Is the topological concept of collapsible useful?
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
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| Aug 6, 2010 at 10:17 | comment | added | Simon Pepin Lehalleur | The wikipedia webpage en.wikipedia.org/wiki/Whitehead_torsion is very nice and explains how this invariant is related to algebraic $K_1$ of the group ring of $\pi_1$, hence to elementary matrix operations. | |
| Aug 6, 2010 at 1:16 | vote | accept | Ryan W | ||
| Aug 6, 2010 at 1:16 | |||||
| Aug 6, 2010 at 0:31 | history | edited | Ryan Budney | CC BY-SA 2.5 |
killed an s
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| Aug 6, 2010 at 0:18 | comment | added | Harry Gindi | By the way, what's the precise definition of a collapse of a simplicial set? All of the definitions I've found are only for simplicial complexes or CW complexes? | |
| Aug 6, 2010 at 0:07 | history | answered | Ryan Budney | CC BY-SA 2.5 |