Quasi-Endomorphism Rings of Some Quasi-Decomposable Torsion-Free Abelian Groups of Rank 4

被引：0
作者：
Cherednikova A.V. [1 ]
机构：
[1] Kostroma State Technological University, ul. Gerjinsky, 17, Kostroma
来源：
Journal of Mathematical Sciences | 2021年 / 259卷 / 4期
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D O I：
10.1007/s10958-021-05641-7
中图分类号：
学科分类号：
摘要：
We obtain a description of quasi-endomorphism rings of torsion-free Abelian groups G of rank 4, quasi-decomposable into a direct sum of groups A1 and A2 of rank 1 and a strongly indecomposable group B of rank 2 in the case where the quasi-homomorphism group ℚ ⨂ Hom(A2,B) has rank 2. © 2021, Springer Science+Business Media, LLC, part of Springer Nature.
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页码：494 / 505
页数：11
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