Around nonclassifiability for countable torsion free abelian groups

被引：0

作者：

Hjorth, G ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Math, Los Angeles, CA 90095 USA

来源：

ABELIAN GROUPS AND MODULES | 1999年

关键词：

D O I：

暂无

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The classification problem for countable torsion free abelian groups is as complicated as that for arbitrary countable structures. The isomorphism relation on general finite rank torsion free abelian groups is not hyperfinite - and thus does not admit invariants of the same structure as in rank 1.

引用

页码：269 / 292

页数：24

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