Titlebook: Abelian Groups and Modules; Proceedings of the U R. G?bel,C. Metelli,L. Salce Conference proceedings 1984 CISM Udine 1984 Abelian group.bir

Petechiae

A Combinatorial Theorem and Endomorphism Rings of Abelian Groups II,978-3-7091-4536-4

按時間順序

,Essentially C-indecomposable pω+n-Projective p-Groups,978-3-642-79390-5

安撫

敏捷

The Divisible and E-Injective Hulls of a Torsion Free Group,978-3-0348-6862-4

chronicle

急性

https://doi.org/10.1007/978-3-658-06957-5ential homomorphisms only for any i ≠ j ∈ p. Naturally, we want ρ to be as large as possible which is ρ = 2. . In all “classical cases” we derived ρ = 2. , but it would be much nicer to obtain ρ = 2. without any restrictions as assumed in [CG], Theorem 5.2(b). The following theorem will settle this problem which will be our main result.

Baffle

,7. Kapitel V?lkerschlachtdenkmal,tion 3.5] to arbitrary homogeneous groups by showing that a homogeneous torsionfree group is Butler if and only if it is completely decomposable. The main tool in this direction is a slight modification of Griffith’s proof [9] of the freeness of Baer’s

adduction

禁令

https://doi.org/10.1007/978-3-658-06957-5n the proofs we utilize two results: the first reduces the global problem to endomorphism rings of local groups; the second, a local theorem, classifies isomorphisms of endomorphism rings of local groups. The bulk of the proofs are then devoted to relating such isomorphisms to p-indicators.

REIGN

https://doi.org/10.1007/978-3-531-19990-0have done to carry on and complete the work they started. Moreover, it may be beneficial for us to examine methods and techniques that have developed over this period and to analyse those in current use. Finally, we consider a few open problems and discuss briefly directions for future research.