Results 81 to 90 of about 24,361 (205)

On Vn-semigroups

open access: yesOpen Mathematics, 2015
In this paper, we give some new characterizations of orthodox semigroups in terms of the set of inverses of idempotents. As a generalization, a new class of regular semigroups, namely Vn-semigroups, is introduced.
Gu Ze, Tang Xilin
doaj   +1 more source

Attractors and upper semicontinuity for an extensible beam with nonlocal structural damping

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 2, February 2026.
Abstract We analyze the asymptotic behavior of a class of extensible beam models governed by a nonlocal structural damping mechanism of the form φ(El)(−Δ)βut$\varphi (E_l)(-\Delta)^{\beta }u_t$, where β∈λ=(0,1]$\beta \in \lambda =(0,1]$. The coefficient φ$\varphi$ is a degenerate C1$C^{1}$‐function depending on the linear energy El$E_l$ of the system ...
Zayd Hajjej   +3 more
wiley   +1 more source

A study on soft rough semigroups and corresponding decision making applications

open access: yesOpen Mathematics, 2017
In this paper, we study a kind of soft rough semigroups according to Shabir’s idea. We define the upper and lower approximations of a subset of a semigroup.
Wang Qiumei   +2 more
doaj   +1 more source

On the Complexity of Properties of Transformation Semigroups

open access: yes, 2019
We investigate the computational complexity for determining various properties of a finite transformation semigroup given by generators. We introduce a simple framework to describe transformation semigroup properties that are decidable in $\mathsf{AC^0}$.
Fleischer, Lukas, Jack, Trevor
core  

On Γ-Semiring With Identity

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
In this paper we study the properties of structures of the semigroup (M,+) and the Γ-semigroup M of Γ -semiring M and regular Γ-semiring M satisfying the identity a + aαb = a or aαb + a = a or a + aαb + b = a or a + 1 = 1, for all a ∈ M, α ∈ Γ.
Rao Marapureddy Murali Krishna
doaj   +1 more source

THE LEFT REGULAR REPRESENTATION OF A COMMUTATIVE SEPARATIVE SEMIGROUP [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1992
In this paper, a commutative semigroup will be written as a disjoint union of its cancellative subsemigroups. Based on this fact we will define the left regular representation of a commutative separative semigroup and show that this representation is ...
doaj  

Union soft set theory applied to ordered semigroups

open access: yesInternational Journal of Analysis and Applications, 2020
The uni-soft type of bi-ideals in ordered semigroup is considered. The notion of a uni-soft bi-ideal is introduced and the related properties are investigated.
Raees Khan   +3 more
doaj  

Idempotent-Aided Factorizations of Regular Elements of a Semigroup

open access: yesMathematics
In the present paper, we introduce the concept of idempotent-aided factorization (I.-A. factorization) of a regular element of a semigroup, which can be understood as a semigroup-theoretical extension of full-rank factorization of matrices over a field ...
Miroslav Ćirić   +2 more
doaj   +1 more source

Ordered Semigroups Based on ∈,∈∨qkδ-Fuzzy Ideals

open access: yesAdvances in Fuzzy Systems, 2018
A new trend of using fuzzy algebraic structures in various applied sciences is becoming a central focus due to the accuracy and nondecoding nature. The aim of the present paper is to develop a new type of fuzzy subsystem of an ordered semigroup S.
Faiz Muhammad Khan   +3 more
doaj   +1 more source

A Characterization of Left Regularity

open access: yesUniversal Journal of Mathematics and Applications, 2019
We show that a zero-symmetric near-ring $N$ is left regular if and only if $N $ is regular and isomorphic to a subdirect product of integral near-rings, where each component is either an Anshel-Clay near-ring or a trivial integral near-ring. We also show
Peter Fuchs
doaj   +1 more source

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