On the structure of just infinite profinite groups

Content Provider	Semantic Scholar
Author	Reid, Colin D.
Copyright Year	2009
Abstract	A profinite group G is just infinite if every closed normal subgroup of G is of finite index. We prove that an infinite profinite group is just infinite if and only if, for every open subgroup H of G, there are only finitely many open normal subgroups of G not contained in H . This extends a result recently established by Barnea, Gavioli, Jaikin-Zapirain, Monti and Scoppola in [1], who proved the same characterisation in the case of pro-p groups. We also use this result to establish a number of features of the general structure of profinite groups with regard to the just infinite property.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://arxiv.org/pdf/0906.1771v2.pdf
Language	English
Access Restriction	Open
Subject Keyword	Contain (action) Subgroup A Nepoviruses
Content Type	Text
Resource Type	Article