Results 41 to 50 of about 8,445,481 (227)

Duo modules [PDF]

open access: yes, 2006
Let R be a ring. An R-module M is called a (weak) duo module provided every (direct summand) submodule of M is fully invariant. It is proved that if R is a commutative domain with field of fractions K then a torsion-free uniform R-module is a duo module ...
Harmanci, A., Ozcan, A.C., Smith, P.F.
core   +2 more sources

Some Properties of r-Small Submodules

open access: yesErzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In this work, some properties of r-small submodules are investigated. It is proved that the finite sum of r-small submodules is r-small. It is also proved that every homomorphic image of an r-small submodule is r-small.
Celil NEBİYEV, Hasan Hüseyin ÖKTEN
openaire   +3 more sources

Topological radical of Banach module

open access: yes, 2016
We introduce the concept of topological radical of a Banach module. This closed submodule have two description: the as the intersection of ranges of maximal contractive monomorphism (from outside) and as the union of ranges of small morphisms (from ...
Aristov, Oleg
core   +1 more source

Epis and monos which must be isos

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Orzech [1] has shown that every surjective endomorphism of a noetherian module is an isomorphism. Here we prove analogous results for injective endomorphisms of noetherian injective modules, and the duals of these results.
David J. Fieldhouse
doaj   +1 more source

Modules in which every surjective endomorphism has an e-small kernel

open access: yesJournal of Kufa for Mathematics and Computer, 2023
In this paper we introduce the notion of e-gH modules which is a proper generalization of Hopfian modules and defined as, a module  is called e-gH if, any surjective -endomorphism  of  has an e-small kernel, a ring  is called e-gH if,  is e-gH. We
osama mohammed, Thaar Younis Ghawi
doaj   +1 more source

A dynamical version of the Mordell-Lang conjecture for the additive group

open access: yes, 2007
We prove a dynamical version of the Mordell-Lang conjecture in the context of Drinfeld modules. We use analytic methods similar to the ones employed by Skolem, Chabauty, and Coleman for studying diophantine equations.Comment: 13 ...
Ghioca, Dragos, Tucker, Thomas J.
core   +1 more source

d-q Small-Signal Model for Grid-Forming MMC and Its Application in Electromagnetic-Transient Simulations

open access: yesEnergies, 2023
The modular multilevel converter (MMC) is a keystone of modern energy transmission systems. Consequently, there is an ongoing pursue for mathematical models to represent it under different configurations and control approaches.
Cleiton M. Freitas   +2 more
semanticscholar   +1 more source

On Rad-D12 Modules

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
Let M be a right R-module. We call M Rad-D12, if for every sub- module N of M, there exist a direct summand K of M and an epimor- phism α : K → M/N such that Kererα ⊆ Rad(K). We show that a direct summand of a Rad-D12 module need not be a Rad-D12 module.
Talebi Yahya   +2 more
doaj   +1 more source

Semi -T- Small Submodules

open access: yesIraqi Journal of Science, 2021
Let  be a ring with identity and  be a submodule of a left - module . A submodule  of  is called - small in  denoted by , in case for any submodule  of ,  implies .  Submodule  of  is called semi -T- small in , denoted by , provided for submodule  of ,  implies that .
openaire   +2 more sources

Z-Small Quasi-Dedekind Modules

open access: yesIraqi Journal of Science, 2023
     In this paper, we define and study z-small quasi-Dedekind as a generalization of small quasi-Dedekind modules. A submodule  of -module  is called z-small (  if whenever  , then . Also,  is called a z-small quasi-Dedekind module if for all  implies  .
Farhan Dakhil Shyaa, Hawraa Abd Al-Sada
semanticscholar   +1 more source

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