Results 51 to 60 of about 6,421 (176)

Ideals in Ordered Γ-Semirings

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2018
In this paper, we introduce the notion of k-ideal, m−k ideal, prime ideal, maximal ideal, filter, irreducible ideal, strongly irreducible ideal in ordered Γ-semirings, study the properties of ideals in ordered Γ-semirings and the relations between them ...
Rao Marapureddy Murali Krishna
doaj   +1 more source

Exact rings and semirings

open access: yes, 2013
We introduce and study an abstract class of semirings, which we call exact semirings, defined by a Hahn-Banach-type separation property on modules.
Butkovič   +15 more
core   +1 more source

Orthogonality for (0, −1) tropical normal matrices

open access: yesSpecial Matrices, 2020
We study pairs of mutually orthogonal normal matrices with respect to tropical multiplication. Minimal orthogonal pairs are characterized. The diameter and girth of three graphs arising from the orthogonality equivalence relation are computed.
Bakhadly Bakhad   +2 more
doaj   +1 more source

On congruence-semisimple semirings and the $K_0$-group characterization of ultramatricial algebras over semifields

open access: yes, 2017
In this paper, we provide a complete description of congruence-semisimple semirings and introduce the pre-ordered abelian Grothendieck groups $K_0(S)$ and $SK_0(S)$ of the isomorphism classes of the finitely generated projective and strongly projective S-
Katsov, Yefim   +2 more
core   +1 more source

All Linear-Solid Varieties of Semirings

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2019
A variety of semirings is said to be solid if each of its identities is satisfied as hyperidentity. There are precisely four solid varieties of semirings.
Hounnon Hippolyte, Denecke Klaus
doaj   +1 more source

On semisimple semirings

open access: yesCommunications in Algebra, 2020
We investigate ideal-semisimple and congruence-semisimple semirings. We give several new characterizations of such semirings using e-projective and e-injective semimodules. We extend several characterizations of semisimple rings to (not necessarily subtractive) commutative semirings.
Abuhlail, Jawad Y.   +1 more
openaire   +2 more sources

Analysis of the Wiener Index of Rough Annihilator Graph Over Rough Semirings

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
An effective analytical and visual tool for comprehending the annihilator relationships inside a rough semiring is its annihilator graph. This paper introduces and investigates rough annihilator graph, denoted RAG(T), of the commutative rough semiring T.
Sudha B., Praba B., Pramita Mishra
wiley   +1 more source

(m,n)-Semirings and a Generalized Fault-Tolerance Algebra of Systems

open access: yesJournal of Applied Mathematics, 2013
We propose a new class of mathematical structures called (m,n)-semirings (which generalize the usual semirings) and describe their basic properties. We define partial ordering and generalize the concepts of congruence, homomorphism, and so forth, for (m ...
Syed Eqbal Alam   +2 more
doaj   +1 more source

On Weakly 1-Absorbing Primary Ideals of Commutative Semirings

open access: yesCommunications in Advanced Mathematical Sciences, 2022
Let $R$ be a commutative semiring with $ 1 \neq0$. In this paper, we study the concept of weakly 1-absorbing primary ideal which is a generalization of 1-absorbing ideal over commutative semirings . A proper ideal $I$ of a semiring $R$ is called a weakly
Ibaa Muraa, Mohammad Saleh
doaj   +1 more source

Finite models for positive combinatorial and exponential algebra

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 11, Page 3380-3400, November 2025.
Abstract We use high girth, high chromatic number hypergraphs to show that there are finite models of the equational theory of the semiring of non‐negative integers whose equational theory has no finite axiomatisation, and show this also holds if factorial, fixed base exponentiation and operations for binomial coefficients are adjoined.
Tumadhir Alsulami, Marcel Jackson
wiley   +1 more source

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