Free products in R. Thompson's group V

We investigate some product structures in R. Thompson's group V's action on the Cantor set \mathfrak{C} \mathcal {D}_{(V,\mathfrak{C})}demonstrative subgroups of V whose class can be used to assist in forming various products. Note that \mathcal {D}_{(V,\mathfrak{C})} \mathbf {Q}/\mathbf {...

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Veröffentlicht in:Transactions of the American Mathematical Society 2013-11, Vol.365 (11), p.5967-5997
Hauptverfasser: BLEAK, COLLIN, SALAZAR-DÍAZ, OLGA
Format: Artikel
Sprache:eng
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Zusammenfassung:We investigate some product structures in R. Thompson's group V's action on the Cantor set \mathfrak{C} \mathcal {D}_{(V,\mathfrak{C})}demonstrative subgroups of V whose class can be used to assist in forming various products. Note that \mathcal {D}_{(V,\mathfrak{C})} \mathbf {Q}/\mathbf {Z} and H\in \mathcal {D}_{(V,\mathfrak{C})} embeds into V, H\in \mathcal {D}_{(V,\mathfrak{C})} embeds in V Using a dynamical approach, we also show the perhaps surprising result that Z^2*Z, even though V and has many embedded copies of free products of various pairs of its subgroups.
ISSN:0002-9947
1088-6850
DOI:10.1090/S0002-9947-2013-05823-0