WEAK MULTIPLICATION MODULES OVER A PULLBACK OF DEDEKIND DOMAINS

被引:14
作者
Atani, S. Ebrahimi [1 ]
Farzalipour, F. [1 ]
机构
[1] Univ Guilan, Dept Math, Rasht, Iran
关键词
pullback; separated; non-separated; weak multiplication; Dedekind domain; pure-injective module; Prufer modules;
D O I
10.4064/cm114-1-8
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let R be the pullback, in the sense of Levy [J. Algebra 71 (1981)], of two local Dedekind domains. We classify all those indecomposable weak multiplication R-modules M with finite-dimensional top, that is, such that M/Rad(R)M is finite-dimensional over R/Rad(R). We also establish a connection between the weak multiplication modules and the pure-injective modules over such domains.
引用
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页码:99 / 112
页数:14
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