Results 41 to 50 of about 369 (191)

MATRIKS ATAS RING DERET PANGKAT TERGENERALISASI MIRING

open access: yesBarekeng, 2021
Let R be a ring with unit elements,  strictly ordered monoids, and  a monoid homomorphism. Formed , which is a set of all functions from S to R with  are Artin and narrow.
Siti Rugayah   +2 more
doaj   +1 more source

Orders of the Renner monoids

open access: yesJournal of Algebra, 2006
A `linear algebraic monoid' is an affine variety defined over an algebraically closed field \(K\) with an associative morphism and an identity. The unit group of an algebraic monoid is an algebraic group. An algebraic monoid is `irreducible' if it is irreducible as a variety.
Li, Zhuo, Li, Zhenheng, Cao, You'an
openaire   +2 more sources

On pomonoid of partial transformations of a poset

open access: yesOpen Mathematics, 2023
The main objective of this article is to study the ordered partial transformations PO(X){\mathcal{PO}}\left(X) of a poset XX. The findings show that the set of all partial transformations of a poset with a pointwise order is not necessarily a pomonoid ...
Al Subaiei Bana
doaj   +1 more source

Rationality, irrationality, and Wilf equivalence in generalized factor order [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Let $P$ be a partially ordered set and consider the free monoid $P^{\ast}$ of all words over $P$. If $w,w' \in P^{\ast}$ then $w'$ is a factor of $w$ if there are words $u,v$ with $w=uw'v$. Define generalized factor order on $P^{\ast}$ by letting $u \leq
Sergey Kitaev   +3 more
doaj   +1 more source

Galois orders in skew monoid rings

open access: yesJournal of Algebra, 2010
The paper deals with ring extensions \(\Gamma\subset U\) of an integral domain \(\Gamma\), in particular, a general class of subrings of invariants in twisted Galois semigroup rings which the authors call Galois orders. The study of such Galois orders is inspired by the authors' previous work on Harish-Chandra categories [Fibers of characters in Harish-
Futorny, Vyacheslav, Ovsienko, Serge
openaire   +2 more sources

Right-orderability versus left-orderability for monoids

open access: yesSemigroup Forum, 2021
We investigate the relationship between (total) left- and right-orderability for monoids, in particular illustrating the finite case by various structural observations and counterexamples, also highlighting the particular role played by \emph{positive} orderability.Moreover, we construct a non-left-orderable, positively right-orderable submonoid of the
openaire   +5 more sources

On a complete lattice of retracts of a free monoid generated by three elements [PDF]

open access: yesOpuscula Mathematica, 2008
We prove that the family of retracts of a free monoid generated by three elements, partially ordered with respect to the inclusion, is a complete lattice.
Wit Foryś
doaj  

PS-Modules over Ore Extensions and Skew Generalized Power Series Rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2015
A right R-module MR is called a PS-module if its socle, SocMR, is projective. We investigate PS-modules over Ore extension and skew generalized power series extension.
Refaat M. Salem   +2 more
doaj   +1 more source

Bruhat-Chevalley Order in Reductive Monoids [PDF]

open access: yesJournal of Algebraic Combinatorics, 2004
Let \(M\) be an irreducible algebraic monoid with zero. \(M\) is a reductive monoid if it is the Zariski closure in \(M_n(K)\) of a reductive group \(G\subseteq\text{GL}_n(K)\). The Bruhat-Chevalley order in \(G\) has a natural extension to \(M\). The Renner monoid \(R\) for \(M\) takes the place of the Weyl group \(W\) for \(G\).
openaire   +2 more sources

Automorphisms of partition order-decreasing transformation monoids [PDF]

open access: yesSemigroup Forum, 2012
Let \(T_n\) (\(S_n\)) be the full transformation semigroup (the symmetric group, respectively) on an \(n\)-element set \(X_n\), \(\rho\) an equivalence relation on \(X_n\), \(\preceq\) a total order on \(X_n/\rho\), \(T(\rho,\preceq)=\{\alpha\in T_n:(x\alpha)\rho\preceq x\rho,\;\forall x\in X_n\}\) and \(U_\rho=\{\mu\in S_n:(x\rho)\mu=x\rho,\;x\in X_n\}
Yang, Haobo, Yang, Xiuliang
openaire   +2 more sources

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