Timeline for Examples of left reversible semigroups
Current License: CC BY-SA 2.5
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| Nov 10, 2009 at 22:54 | comment | added | Yemon Choi | I had thought of this but wasn't sure about left reversibility. It might be worth observing, if Clifford & Preston don't, that the group completion of this guy is an example of a Baumslag-Solitar group. BS-groups are in general of interest to geometric group theorists, perhaps mined to exhaustion, perhaps not (I honestly don't know). | |
| Nov 10, 2009 at 20:50 | history | answered | Orr Shalit | CC BY-SA 2.5 |