Timeline for HNN Embedding Theorem for Amenable Groups?
Current License: CC BY-SA 2.5
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 24, 2011 at 12:33 | vote | accept | Simon Thomas | ||
| Sep 24, 2011 at 5:17 | answer | added | Denis Osin | timeline score: 19 | |
| Sep 22, 2010 at 10:39 | answer | added | user6976 | timeline score: 8 | |
| Jul 9, 2010 at 2:39 | answer | added | Peter Linnell | timeline score: 8 | |
| Jul 6, 2010 at 4:09 | answer | added | Mustafa Gokhan Benli | timeline score: 4 | |
| Jul 5, 2010 at 19:54 | comment | added | Simon Thomas | @ Jon: As you would expect, I don't know the answer to your question ... | |
| Jul 5, 2010 at 19:48 | comment | added | Jon Bannon | Suppose we restrict our attention to finitely generated groups. Does Grigorchuk's group embed into a 2-generator amenable group? | |
| Jul 5, 2010 at 19:45 | comment | added | Simon Thomas | The HNN Embedding Theorem says that every countable group embeds into a 2-generator group. Of course, $\mathbb{Q}$ doesn't embed into a f.g. abelian group. However, I don't know whether $\mathbb{Q}$ embeds into an amenable f.g. group. | |
| Jul 5, 2010 at 19:42 | comment | added | Yemon Choi | I must be missing something. What f.g. group does ${\mathbb Q}$ embed into? | |
| Jul 5, 2010 at 19:30 | history | asked | Simon Thomas | CC BY-SA 2.5 |