On Nilpotent-invariant One-sided Ideals

On Nilpotent-invariant One-sided Ideals

The notion of a nilpotent-invariant module was introduced and thoroughly investigated in Koşan and Quynh (Comm. Algebra 45 , 2775–2782 2017 ) as a proper extension of an automorphism-invariant module. In this paper a ring is called a right n -ring if every right ideal is nilpotent-invariant. We show...

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Veröffentlicht in:Acta mathematica vietnamica 2024, Vol.49 (1), p.115-128
Hauptverfasser: Quynh, Truong Cong, Van, Truong Thi Thuy
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Automorphisms
Invariants
Mathematics
Mathematics and Statistics
Modules
Rings (mathematics)
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description The notion of a nilpotent-invariant module was introduced and thoroughly investigated in Koşan and Quynh (Comm. Algebra 45 , 2775–2782 2017 ) as a proper extension of an automorphism-invariant module. In this paper a ring is called a right n -ring if every right ideal is nilpotent-invariant. We show that a right n -ring is the direct sum of a square full semisimple artinian ring and a right square-free ring. Moreover, right n -rings are shown to be stably finite, and if the ring is also an exchange ring then it satisfies the substitution property, has stable range 1. These results are non-trivial extensions of similar ones on rings every right ideal is automorphism-invariant.
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subjects Automorphisms
Invariants
Mathematics
Mathematics and Statistics
Modules
Rings (mathematics)
title On Nilpotent-invariant One-sided Ideals
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