On Preservation of Stability for Finite Extensions of Abelian Groups
β Scribed by Frieder Haug
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 778 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0044-3050
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
We characterize preservation of superstability and Οβstability for finite extensions of abelian groups and reduce the general case to the case of pβgroups. In particular we study finite extensions of divisible abelian groups. We prove that superstable abelianβbyβfinite groups have only finitely many conjugacy classes of Sylow pβsubgroups.
Mathematics Subject Classification: 03C60, 20C05.
π SIMILAR VOLUMES
when A is a torsion-free abelian group of rank one. As a consequence he was able to show that a finite rank torsion-free group M satisfies M ( nat M\*\* if and only if M F A I and pM s M precisely when pA s A, where Ε½ . M\*sHom y, A . Using this Warfield obtained a characterization of Z Ε½ . w x the
A finite Abelian group G is partitioned into subsets which are translations of each othtr. A binary operation is defined on these sets in a way which generalizes the quotient group operation. Every finite Abelian group can be realized as such a generalized quotient with G cyclic.