Results 11 to 20 of about 4,244 (151)

Multiplicatively idempotent semirings [PDF]

open access: yesMathematica Bohemica, 2015
Let \((S,+,\cdot)\) be an additively commutative semiring with absorbing zero \(0\) and identity \(1\). It is shown that \((S,\cdot)\) is idempotent if and only if there exist positive integers \(n\) and \(m\geq 2\) such that \(x^{n+1}=x^n\) and \(x^m=x\) for all \(x\in S\).
Chajda, Ivan   +2 more
openaire   +4 more sources

Projective Essential Idempotents

open access: yesIEEE Transactions on Information Theory, 2023
<p>This paper introduces the concept of projective essential idempotents. These are primitive central idempotents in a twisted group algebra. The first main result provides conditions for the existence of them. In the second main result, we prove that every $q$-ary simplex code can be seen as an ideal of a twisted group algebra generated by a ...
openaire   +1 more source

Absolutely flat idempotents [PDF]

open access: yesThe Electronic Journal of Linear Algebra, 2003
11 pages, Electronic Journal of Linear ...
Johnson, Charles R.   +4 more
openaire   +3 more sources

Self-Adaptation and Secure Information Flow in Multiparty Structured Communications: A Unified Perspective [PDF]

open access: yes, 2014
We present initial results on a comprehensive model of structured communications, in which self- adaptation and security concerns are jointly addressed.
Castellani, Ilaria   +2 more
core   +8 more sources

Strongly barycentrically associative and preassociative functions [PDF]

open access: yes, 2016
We study the property of strong barycentric associativity, a stronger version of barycentric associativity for functions with indefinite arities. We introduce and discuss the more general property of strong barycentric preassociativity, a generalization ...
Marichal, Jean-Luc, Teheux, Bruno
core   +3 more sources

Introduction to Dependence Relations and Their Links to Algebraic Hyperstructures

open access: yesMathematics, 2019
The aim of this paper is to study, from an algebraic point of view, the properties of interdependencies between sets of elements (i.e., pieces of secrets, atmospheric variables, etc.) that appear in various natural models, by using the algebraic ...
Irina Cristea   +2 more
doaj   +1 more source

Maps Preserving Idempotence on Matrix Spaces

open access: yesJournal of Mathematics, 2015
Suppose F is an arbitrary field. Let |F| be the number of the elements of F. Let Mn(F) be the space of all n×n matrices over F, let Sn(F) be the subset of Mn(F) consisting of all symmetric matrices, and let Tn(F) be the subset of Mn(F) consisting of all ...
Yuqiu Sheng, Hanyu Zhang
doaj   +1 more source

Students’ Innovation Ability Evaluation in Vocational Colleges Based on the STEAM Education Concept: A Neutrosophic SuperHyper Pentapartitioned Process Model [PDF]

open access: yesNeutrosophic Sets and Systems
Innovation ability is increasingly regarded as a core competence in vocational education, particularly under the STEAM (Science, Technology, Engineering, Arts, Mathematics) paradigm that emphasizes integrative and creative problem-solving.
Xiaodan Kong
doaj   +1 more source

Cognitive constraints, contraction consistency, and the satisficing criterion [PDF]

open access: yes, 2008
© 2007, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4 ...
Aleskerov   +24 more
core   +1 more source

Neutrosophic Super-Hypergraph Fusion for Proactive Cyberattack Countermeasures: A Soft Computing Framework [PDF]

open access: yesNeutrosophic Sets and Systems
Cyber defense often fails early because heterogeneous signals noisy logs, shifting baselines, and adversarial deception are collapsed into a single score.
Ehab Roshdy   +2 more
doaj   +1 more source

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