Results 31 to 40 of about 652,533 (244)

DERIVATIONS IN SEMIGROUP ALGEBRAS

open access: yesEurasian Mathematical Journal, 2020
Summary: The main goal of this paper is to describe derivations in semigroup algebras, where the semigroup satisfies the Maltsev conditions. We prove that the derivation algebra of such semigroup algebra is embedded into the derivation algebra of some group.
Alekseev, Aleksandr Vladimirovich   +1 more
openaire   +1 more source

$\gamma$- BCK algebras [PDF]

open access: yesJournal of Mahani Mathematical Research, 2022
We know that $\Gamma-$ring, $\Gamma-$incline, $\Gamma-$semiring, $\Gamma-$semigroup are generalizations ofring, incline, semiring and semigroup respectively.
Arsham Borumand Saeid   +2 more
doaj   +1 more source

On linear algebraic semigroups [PDF]

open access: yesTransactions of the American Mathematical Society, 1980
Let K be an algebraically closed field. By an algebraic semigroup we mean a Zariski closed subset of K n {K^n} along with a polynomially defined associative operation. Let S be an algebraic semigroup. We show that S has ideals I 0 ,
openaire   +8 more sources

HYPERBOLICITY OF SEMIGROUP ALGEBRAS II [PDF]

open access: yesJournal of Algebra and Its Applications, 2010
In 1996, Jespers and Wang classified finite semigroups whose integral semigroup ring has finitely many units. In a recent paper, Iwaki–Juriaans–Souza Filho continued this line of research by partially classifying the finite semigroups whose rational semigroup algebra contains a ℤ-order with hyperbolic unit group.
Jespers, Eric   +3 more
openaire   +4 more sources

A Note on Locally Inverse Semigroup Algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
Let R be a commutative ring and S a finite locally inverse semigroup. It is proved that the semigroup algebra R[S] is isomorphic to the direct product of Munn algebras ℳ(R[GJ],mJ,nJ;PJ) with J∈S/𝒥, where mJ is the number of ℛ-classes in J, nJ the
Xiaojiang Guo
doaj   +1 more source

Generalization of the weak amenability on various Banach algebras [PDF]

open access: yesMathematica Bohemica, 2019
The generalized notion of weak amenability, namely $(\varphi,\psi)$-weak amenability, where $\varphi,\psi$ are continuous homomorphisms on a Banach algebra ${\mathcal A}$, was introduced by Bodaghi, Eshaghi Gordji and Medghalchi (2009).
Madjid Eshaghi Gordji   +2 more
doaj   +1 more source

Zappa-Sz\'ep products of semigroups and their C*-algebras [PDF]

open access: yes, 2014
Zappa-Sz\'ep products of semigroups encompass both the self-similar group actions of Nekrashevych and the quasi-lattice-ordered groups of Nica. We use Li's construction of semigroup $C^*$-algebras to associate a $C^*$-algebra to Zappa-Sz\'ep products and
Brownlowe, Nathan   +3 more
core   +3 more sources

Some Characterizations for Approximate Biflatness of Semigroup Algebras

open access: yesJournal of Mathematics, 2023
In this paper, we study an approximate biflatness of l1S, where S is a Clifford semigroup. Indeed, we show that a Clifford semigroup algebra l1S is approximately biflat if and only if every maximal subgroup of S is amenable, ES is locally finite, and l1S
N. Razi, A. Sahami
doaj   +1 more source

A note on the Howson property in inverse semigroups [PDF]

open access: yes, 2016
An algebra has the Howson property if the intersection of any two finitely generated subalgebras is finitely generated. A simple necessary and sufficient condition is given for the Howson property to hold on an inverse semigroup with finitely many ...
Jones, Peter R.
core   +3 more sources

Three-dimensional hypergravity theories and semigroup expansion method

open access: yesJournal of High Energy Physics, 2023
In this work, we apply the semigroup expansion method of Lie algebras to construct novel and known three-dimensional hypergravity theories. We show that the expansion procedure considered here yields a consistent way of coupling different three ...
Ricardo Caroca   +4 more
doaj   +1 more source

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