Timeline for Cohomological dimension of finitely presented group
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Jul 12, 2012 at 4:45 | history | edited | Earthliŋ |
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| Jul 12, 2012 at 4:44 | vote | accept | Earthliŋ | ||
| Jun 14, 2012 at 18:06 | comment | added | HJRW | Oh, I see that Lee Mosher wrote something similar in a comment below. The bottom line is that there is a huge bestiary of groups of cohomological dimension two. | |
| Jun 14, 2012 at 18:02 | comment | added | HJRW | Or any Baumslag--Solitar group (presentation $\langle a,b\mid ba^mb^{-1}=b^n\rangle$ ). | |
| Jun 14, 2012 at 16:22 | comment | added | Misha | A concrete example: Take figure 8 knot (or any nontrivial 2-bridge knot). Then the fundamental group of the complement is 2-generated and has cohomological dimension 2. | |
| Jun 14, 2012 at 15:45 | answer | added | Igor Rivin | timeline score: 0 | |
| Jun 14, 2012 at 14:23 | answer | added | Lee Mosher | timeline score: 7 | |
| Jun 14, 2012 at 14:11 | history | asked | Earthliŋ | CC BY-SA 3.0 |