Results 31 to 40 of about 2,333 (139)

SELECTION OF SOLUTIONS FOR DESIGNING OPEN SYSTEMS BASED ON ANALYSIS OF VARIANTS WITH RANDOM WEIGHTS

open access: yesРоссийский технологический журнал, 2018
A new one-parameter approach to the selection of optimal solutions for the design of complex systems is proposed. The approach is based on the analysis of a tree of variants with random weights (here weight is a certain non-negative quantity: for example,
A. A. Pastushkov, V. K. Batovrin
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

Cryptography Based on (Idempotent) Semirings: Abandoning Tropicality?

open access: yesEncyclopedia
This review explores the current state of public key cryptography based on idempotent semirings, with an emphasis on tropical semirings. It examines key hard problems, such as the tropical discrete logarithm problem, semidirect tropical product problem ...
Mariana Durcheva
doaj   +1 more source

Secure Key Exchange in Tropical Cryptography: Leveraging Efficiency with Advanced Block Matrix Protocols

open access: yesMathematics
In the quest for robust and efficient digital communication, this paper introduces cutting-edge key exchange protocols leveraging the computational prowess of tropical semirings and the structural resilience of block matrices.
Mariana Durcheva, Kiril Danilchenko
doaj   +1 more source

Algebraic structures of tropical mathematics

open access: yes, 2013
Tropical mathematics often is defined over an ordered cancellative monoid $\tM$, usually taken to be $(\RR, +)$ or $(\QQ, +)$. Although a rich theory has arisen from this viewpoint, cf.
Izhakian, Zur   +2 more
core   +1 more source

Idempotent Triangular Matrices over Additively Idempotent Semirings: Decompositions into Products of Semicentral Idempotents

open access: yesAxioms
The explicit forms of idempotent and semicentral idempotent triangular matrices over an additively idempotent semiring are obtained. We define a diamond composition of idempotents and give a representation of an idempotent n×n matrix as an (n−1)th degree
Dimitrinka Vladeva
doaj   +1 more source

Synchronizing weighted automata

open access: yes, 2014
We introduce two generalizations of synchronizability to automata with transitions weighted in an arbitrary semiring K=(K,+,*,0,1). (or equivalently, to finite sets of matrices in K^nxn.) Let us call a matrix A location-synchronizing if there exists a ...
Iván, Szabolcs
core   +2 more sources

Congruence-simple matrix semirings

open access: yesInternational Journal of Algebra and Computation
It is well known that the full matrix ring over a skew-field is a simple ring. We generalize this theorem to the case of semirings. We characterize the case when the matrix semiring [Formula: see text], of all [Formula: see text] matrices over a semiring S, is congruence-simple, provided that either S has a multiplicatively absorbing element or S is ...
Vítězslav Kala   +2 more
openaire   +3 more sources

The Discrete Lyapunov Equation of The Orthogonal Matrix in Semiring

open access: yesEuropean Journal of Pure and Applied Mathematics, 2023
Semiring is an algebraic structure of (S, +, ×). Similar to a ring, but without the condition that each element must have an inverse to the adding operation. The forms (S, +) and (S, ×) are semigroups that satisfy the distributive law of multiplication and addition. In matrix theory, there is a term known as the Kronecker product.
Ariyanti, Gregoria   +1 more
openaire   +1 more source

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