On a Question of Ross and Stromberg
Journal of Lie theory, Tome 25 (2015) no. 3, pp. 889-901
A topological group G is called an [AFG]-group if G contains an increasing sequence of finite subgroups having a dense union. In this paper it is proved that the identity component G0 of a locally compact [AFG]-group G is a pro-torus. This partially answers an old open question posed by K. A. Ross and K. Stromberg [Pacific J. Math. 20 (1967) 135--147]. Other results included in this paper give a necessary and sufficient condition for an almost connected Lie group to be an [AFG]-group.
Classification :
22D05
Mots-clés : Locally compact group, Lie group, pro-Lie group, pro-torus, compact element, projective limit, Chabauty topology
Mots-clés : Locally compact group, Lie group, pro-Lie group, pro-torus, compact element, projective limit, Chabauty topology
@article{JLT_2015_25_3_JLT_2015_25_3_a12,
author = {H. Hamrouni},
title = {On a {Question} of {Ross} and {Stromberg}},
journal = {Journal of Lie theory},
pages = {889--901},
year = {2015},
volume = {25},
number = {3},
url = {http://geodesic.mathdoc.fr/item/JLT_2015_25_3_JLT_2015_25_3_a12/}
}
H. Hamrouni. On a Question of Ross and Stromberg. Journal of Lie theory, Tome 25 (2015) no. 3, pp. 889-901. http://geodesic.mathdoc.fr/item/JLT_2015_25_3_JLT_2015_25_3_a12/