NON-SIMPLICITY OF LOCALLY FINITE BARELY TRANSITIVE GROUPS

Citation
B. Hartley et M. Kuzucuoglu, NON-SIMPLICITY OF LOCALLY FINITE BARELY TRANSITIVE GROUPS, Proceedings of the Edinburgh Mathematical Society, 40, 1997, pp. 483-490
Citations number
9
Categorie Soggetti
Mathematics, General",Mathematics
ISSN journal
00130915
Volume
40
Year of publication
1997
Part
3
Pages
483 - 490
Database
ISI
SICI code
0013-0915(1997)40:<483:NOLFBT>2.0.ZU;2-9
Abstract
We answer the following questions negatively: Does there exist a simpl e locally finite barely transitive group (LFBT-group)? More precisely we have: There exists no simple LFBT-group. We also deal with the ques tion, whether there exists a LFBT-group G acting on an infinite set Om ega so that G is a group of finitary permutations on Omega. Along this direction we prove: If there exists a finitary LFBT-group G, then G i s a minimal non-FC p-group. Moreover we prove that: If a stabilizer of a point in a LFBT-group G is abelian, then G is metabelian. Furthermo re G is a p-group for some prime p, G/G' congruent to C-p infinity and G' is an abelian group of finite exponent.