Timeline for homological 2 dimensional groups
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 8, 2016 at 19:54 | vote | accept | Nicolas Boerger | ||
| Jan 8, 2016 at 14:41 | answer | added | Misha | timeline score: 4 | |
| Jan 7, 2016 at 22:27 | comment | added | Nicolas Boerger | Dear Misha, I would like to know a reference for the result without the 1st Betti number assumption, both over $\mathbb{Z}$ and for the "virtual" statement for "reasonable" commutative rings. Thanks a lot in advance! | |
| Jan 7, 2016 at 19:09 | history | edited | Nicolas Boerger | CC BY-SA 3.0 |
added 2 characters in body
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| Jan 7, 2016 at 7:52 | comment | added | Misha | It is very unclear what exactly your question is. It is known that PD(2) groups over Z are surface groups; it is also known that PD(2) groups over other "reasonable" commutative rings are virtually surface groups. No need to assume nontriviality of the 1st betti number. What are the "certain" groups you are interested in? | |
| Jan 6, 2016 at 22:44 | comment | added | YCor | The term is "homological dimension 2", where "homological" qualifies "dimension". So "homological 2 dimensional" and "homologic dimension 2" both sound weird. | |
| Jan 6, 2016 at 22:21 | history | asked | Nicolas Boerger | CC BY-SA 3.0 |