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Convex Subgroups of Partially Right-Ordered Groups
A. M. Protopopov
Abstract:
We study into the question of whether a partial order can be induced from a partially right-ordered group $G$ onto a space $R(G:H)$ of right cosets of $G$ w.r.t. some subgroup $H$ of $G$. Examples are constructed showing that the condition of being convex for $H$ in $G$ is insufficient for this. A necessary and sufficient condition (in terms of a subgroup $H$ and a positive cone $P$ of $G$) is specified under which an order of $G$ can be induced onto $R(G:H)$. Sufficient conditions are also given. We establish properties of the class of partially right-ordered groups $G$ for which $R(G:H)$ is partially ordered for every convex subgroup $H$, and properties of the class of groups such that $R(G:H)$ is partially ordered for every partial right order $P$ on $G$ and every subgroup $H$ that is convex under $P$.
Keywords:
partially right-ordered group, convex subgroup.
Received: 27.10.2001 Revised: 17.02.2002
Citation:
A. M. Protopopov, “Convex Subgroups of Partially Right-Ordered Groups”, Algebra Logika, 42:4 (2003), 497–509; Algebra and Logic, 42:4 (2003), 279–286
Linking options:
https://www.mathnet.ru/eng/al41 https://www.mathnet.ru/eng/al/v42/i4/p497
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