Results 31 to 40 of about 487 (71)

One‐sided complements and solutions of the equation aXb = c in semirings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 29, Issue 8, Page 453-458, 2002., 2002
Given multiplicatively‐regular elements a and b in a semiring R, and given an element c of R, we find a complete set of solutions to the equation aXb = c. This result is then extended to equations over matrix semirings.
Sam L. Blyumin, Jonathan S. Golan
wiley   +1 more source

Characterizations of projective and k‐projective semimodules

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 32, Issue 7, Page 439-448, 2002., 2002
This paper deals with projective and k‐projective semimodules. The results for projective semimodules are generalization of corresponding results for projective modules.
Huda Mohammed J. Al-Thani
wiley   +1 more source

Derivations in some Finite Endomorphism Semirings

open access: yes, 2012
The goal of this paper is to provide some basic structure information on derivations in finite semirings.Comment: 18 ...
Trendafilov, Ivan
core   +1 more source

Subdirect products of semirings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 9, Page 539-545, 2001., 2001
Bandelt and Petrich (1982) proved that an inversive semiring S is a subdirect product of a distributive lattice and a ring if and only if S satisfies certain conditions. The aim of this paper is to obtain a generalized version of this result. The main purpose of this paper however, is to investigate, what new necessary and sufficient conditions need we
P. Mukhopadhyay
wiley   +1 more source

On the dimension of polynomial semirings [PDF]

open access: yes, 2015
In our previous work, motivated by the study of tropical polynomials, a definition for prime congruences was given for an arbitrary commutative semiring.
Joó, Dániel, Mincheva, Kalina
core   +1 more source

∗‐π‐Reversible ∗‐Semirings and Their Applications to Generalized Inverses

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
We introduce and study a new class of ∗‐semirings which is called ∗‐π‐reversible ∗‐semirings. A ∗‐semiring R is said to be ∗‐π‐reversible if for any a, b ∈ R, ab = 0 implies there exist two positive integers m and n such that bman∗=0. Some characterizations and examples of this class of semirings are given. As applications, generalized inverses related
Yuanfan Zhuo, Qinqin Gu, Huadong Su
wiley   +1 more source

On quasi‐ideals of semirings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 1, Page 47-58, 1994., 1993
Several statements on quasi‐ideals of semirings are given in this paper, where these semirings may have an absorbing element O or not. In Section 2 we characterize regular semirings and regular elements of semi‐rings using quasi‐ideals (cf. Thms. 2.1, 2.2 and 2.7). In Section 3 we deal with (O−)minimal and canonical quasi‐ideals.
Christoph Dönges
wiley   +1 more source

On k‐ideals of semirings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 15, Issue 2, Page 347-350, 1992., 1992
Certain types of ring congruences on an additive inverse semiring are characterized with the help of full k‐ideals. It is also shown that the set of all full k‐ideals of an additively inverse semiring in which addition is commutative forms a complete lattice which is also modular.
M. K. Sen, M. R. Adhikari
wiley   +1 more source

The additively idempotent semiring $$S_7^0$$ is nonfinitely based

open access: yesSemigroup Forum
We show that the additively idempotent semiring $S_7^0$ has no finite basis for its equational theory. This answers an open problem posed by Jackson et al. (J. Algebra 611 (2022), 211--245).
Wu, Yanan   +2 more
openaire   +3 more sources

Semiring and semimodule issues in MV-algebras

open access: yes, 2013
In this paper we propose a semiring-theoretic approach to MV-algebras based on the connection between such algebras and idempotent semirings - such an approach naturally imposing the introduction and study of a suitable corresponding class of semimodules,
Adámek J.   +23 more
core   +1 more source

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