On James Hyde's example of non-orderable subgroup of \(\text{Homeo}(D,\partial D)\) (Q2070052)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On James Hyde's example of non-orderable subgroup of \(\text{Homeo}(D,\partial D)\) |
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On James Hyde's example of non-orderable subgroup of \(\text{Homeo}(D,\partial D)\) (English)
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21 January 2022
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Summary: In [Ann. Math. (2) 190, No. 2, 657--661 (2019; Zbl 07107184)] \textit{J. Hyde} presented the first example of non-left-orderable, finitely generated subgroup of \(\text{Homeo}(D,\partial D)\), the group of homeomorphisms of the disk fixing the boundary. This implies that the group \(\text{Homeo}(D,\partial D)\) itself is not left-orderable. We revisit the construction, and present a slightly different proof of purely dynamical flavor, avoiding direct references to properties of left-orders. Our approach allows to solve the analogue problem for actions on the circle.
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one-dimensional actions
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Klein bottle group
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groups of planar homeomorphisms
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