Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica (Jul 2020)

On S-2-absorbing submodules and vn-regular modules

  • Ulucak Gülşen,
  • Tekir Ünsal,
  • Koç Suat

DOI
https://doi.org/10.2478/auom-2020-0030
Journal volume & issue
Vol. 28, no. 2
pp. 239 – 257

Abstract

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Let R be a commutative ring and M an R-module. In this article, we introduce the concept of S-2-absorbing submodule. Suppose that S ⊆ R is a multiplicatively closed subset of R. A submodule P of M with (P :R M) ∩ S = ∅ is said to be an S-2-absorbing submodule if there exists an element s ∈ S and whenever abm ∈ P for some a, b ∈ R and m ∈ M, then sab ∈ (P :R M) or sam ∈ P or sbm ∈ P. Many examples, characterizations and properties of S-2-absorbing submodules are given. Moreover, we use them to characterize von Neumann regular modules in the sense [9].

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