Strongly radical supplemented modules

被引:0
|
作者
E. Büyükaşık
E. Türkmen
机构
[1] Izmir Institute of Technology,Department of Mathematics
[2] Amasya University,Department of Mathematics, Faculty of Art and Science
关键词
Local Ring; Torsion Module; Discrete Valuation Ring; Dedekind Domain; Semilocal Ring;
D O I
10.1007/s11253-012-0579-3
中图分类号
学科分类号
摘要
Zöschinger studied modules whose radicals have supplements and called these modules radical supplemented. Motivated by this, we call a module strongly radical supplemented (briefly srs) if every submodule containing the radical has a supplement. We prove that every (finitely generated) left module is an srs-module if and only if the ring is left (semi)perfect. Over a local Dedekind domain, srs-modules and radical supplemented modules coincide. Over a nonlocal Dedekind domain, an srs-module is the sum of its torsion submodule and the radical submodule.
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页码:1306 / 1313
页数:7
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