Results 11 to 20 of about 55,120 (219)

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 \(x\in S\).
E. M. Vechtomov, A. Petrov
semanticscholar   +5 more sources

Idempotent rank in the endomorphism monoid of a non-uniform partition [PDF]

open access: yes, 2015
We calculate the rank and idempotent rank of the semigroup $E(X,P)$ generated by the idempotents of the semigroup $T(X,P)$, which consists of all transformations of the finite set $X$ preserving a non-uniform partition $P$. We also classify and enumerate
Dolinka, Igor   +2 more
core   +4 more sources

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   +2 more sources

Products of Idempotent Operators

open access: yesIntegral Equations and Operator Theory, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. Arias, G. Corach, A. Maestripieri
semanticscholar   +3 more sources

Absolute continuity, supports and idempotent splitting in categorical probability [PDF]

open access: yesarXiv.org, 2023
Markov categories have recently turned out to be a powerful high-level framework for probability and statistics. They accommodate purely categorical definitions of notions like conditional probability and almost sure equality, as well as proofs of ...
T. Fritz   +4 more
semanticscholar   +1 more source

Deep Idempotent Network for Efficient Single Image Blind Deblurring [PDF]

open access: yesIEEE transactions on circuits and systems for video technology (Print), 2022
Single image blind deblurring is highly ill-posed as neither the latent sharp image nor the blur kernel is known. Even though considerable progress has been made, several major difficulties remain for blind deblurring, including the trade-off between ...
Yuxin Mao   +3 more
semanticscholar   +1 more source

The Karoubi envelope and weak idempotent completion of an extriangulated category [PDF]

open access: yesApplied Categorical Structures, 2020
We show that the idempotent completion and weak idempotent completion of an extriangulated category are also extriangulated.
Dixy Msapato
semanticscholar   +1 more source

Idempotent solutions of the Yang–Baxter equation and twisted group division [PDF]

open access: yesFundamenta Mathematicae, 2020
Idempotent left nondegenerate solutions of the Yang-Baxter equation are in one-to-one correspondence with twisted Ward left quasigroups, which are left quasigroups satisfying the identity $(x*y)*(x*z)=(y*y)*(y*z)$.
David Stanovsk'y, Petr Vojtvechovsk'y
semanticscholar   +1 more source

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

On discrete idempotent paths [PDF]

open access: yesWords, 2019
The set of discrete lattice paths from (0, 0) to (n, n) with North and East steps (i.e. words w $\in$ { x, y } * such that |w| x = |w| y = n) has a canonical monoid structure inherited from the bijection with the set of join-continuous maps from the ...
L. Santocanale
semanticscholar   +1 more source

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