Timeline for Is Higman's group a free product?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Jan 15, 2021 at 16:28 | comment | added | Guest | Thanks! This is very informative. | |
| Jan 13, 2021 at 9:46 | comment | added | YCor | I think the argument shows that whenever $H$ acts isometrically on a (nonempty) Gromov-hyperbolic space, either the action is horocyclic (there's a unique fixed point at infinity and no loxodromic), or each generator, actually each $H_i$, acts with bounded orbits. In particular every proper such action is horocyclic (while an infinite relatively hyperbolic group always admits a proper non-horocyclic action). | |
| Jan 13, 2021 at 9:32 | history | edited | YCor | CC BY-SA 4.0 |
emphasized main statement to help reader (feel free to revert)
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| Jan 13, 2021 at 8:38 | history | answered | AGenevois | CC BY-SA 4.0 |