Simple Riesz groups having wild intervals

dc.creatorOrtus, Francisco
dc.creatorPardo, Enric
dc.creatorPerera, Francesc
dc.date2004-05-03
dc.date.accessioned2026-07-07T05:07:53Z
dc.date.available2026-07-07T05:07:53Z
dc.descriptionWe prove that every partially ordered simple group of rank one which is not Riesz embeds into a simple Riesz group of rank one if and only if it is not isomorphic to the additive group of the rationals. Using this result, we construct examples of simple Riesz groups of rank one $G$, containing unbounded intervals $(D_n)_{n\geq 1}$ and $D$, that satisfy: (a) For each $n\geq 1$, $tD_n\ne G^+$ for every $t< q_n$, but $q_nD_n=G^+$ (where $(q_n)$ is a sequence of relatively prime integers); (b) For every $n\geq 1$, $nD\ne G^+$. We sketch some potential applications of these results in the context of K-Theory.
dc.description27 pages
dc.identifierhttps://arxiv.org/abs/math/0405035
dc.identifierhttp://arxiv.org/abs/math/0405035
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/71043
dc.subjectOperator Algebras
dc.subjectK-Theory and Homology
dc.subject06F20; 20K20; 19K14; 46L55
dc.titleSimple Riesz groups having wild intervals
dc.typetext

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