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On zero subrings and periodic subrings.

Bell, Howard E. (2001)

International Journal of Mathematics and Mathematical Sciences

On $μ$ -singular and $μ$ -extending modules

Yahya Talebi, Ali Reza Moniri Hamzekolaee (2012)

Archivum Mathematicum

Let $M$ be a module and $μ$ be a class of modules in $Mod - R$ which is closed under isomorphisms and submodules. As a generalization of essential submodules Özcan in [8] defines a $μ$ -essential submodule provided it has a non-zero intersection with any non-zero submodule in $μ$ . We define and investigate $μ$ -singular modules. We also introduce $μ$ -extending and weakly $μ$ -extending modules and mainly study weakly $μ$ -extending modules. We give some characterizations of $μ$ -co-H-rings by weakly $μ$ -extending modules. Let $R$ ...

Ordered ultraconnected rings

Melvin Henriksen, Frank A. Smith (1990)

Commentationes Mathematicae Universitatis Carolinae

Ordinary selfdistributive rings

Sobhy Ghoneim, Marian Kechlibar, Tomáš Kepka (2005)

Commentationes Mathematicae Universitatis Carolinae

Left selfdistributive rings (i.e., $x y z = x y x z$ ) which are semidirect sums of boolean rings and rings nilpotent of index at most 3 are studied.

Orthodox bands of modules

Francis Pastijn (1975/1976)

Groupe d'étude d'algèbre Groupe d'étude d'algèbre