Results 11 to 20 of about 42 (42)

Some properties of graded comultiplication modules

open access: yesOpen Mathematics, 2017
Let G be a group with identity e. Let R be a G-graded commutative ring and M a graded R-module. In this paper we will obtain some results concerning the graded comultiplication modules over a commutative graded ring.
Al-Zoubi Khaldoun, Al-Qderat Amani
doaj   +1 more source

Some homological properties of skew PBW extensions arising in non-commutative algebraic geometry

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
In this short paper we study for the skew PBW (Poincar-Birkhoff-Witt) extensions some homological properties arising in non-commutative algebraic geometry, namely, Auslander-Gorenstein regularity, Cohen-Macaulayness and strongly noetherianity.
Lezama Oswaldo
doaj   +1 more source

Central polynomials for matrix algebras over the Grassmann algebra

open access: yes, 2009
In this work, we describe a method to construct central polynomials for F-algebras where F is a field of characteristic zero. The main application deals with the T-prime algebras Mn(E), where E is the infinite- dimensional Grassmann algebra over F, which
Vieira, Ana C., Jorge, S. M. Alves
core   +1 more source

Minimal Resolutions of Algebras

open access: yes, 1999
. A method is described for constructing the minimal projective resolution of an algebra considered as a bimodule over itself. The method applies to an algebra presented as the quotient of a tensor algebra over a separable algebra by an ideal of ...
M.C.R. Butler   +3 more
core   +1 more source

Group Gradings on Free Algebras of Nilpotent Varieties of Algebras [PDF]

open access: yes, 2012
2010 Mathematics Subject Classification: Primary 16W50, 17B70; Secondary 16R10.The main result is the classification, up to isomorphism, of all gradings by arbitrary abelian groups on the finitely generated algebras that are free in a nilpotent variety ...
Bahturin, Yuri
core  

Gradings and Graded Identities for the Matrix Algebra of Order Two in Characteristic 2 [PDF]

open access: yes, 2012
2010 Mathematics Subject Classification: 16R10, 16R99, 16W50.Let K be an infinite field and let M2(K) be the matrix algebra of order two over K. The polynomial identities of M2(K) are known whenever the characteristic of K is different from 2.
Koshlukov, Plamen   +1 more
core  

Weyl Groups of Fine Gradings on Simple Lie Algebras of Types A, B, C and D [PDF]

open access: yes, 2012
2010 Mathematics Subject Classification: Primary 17B70, secondary 17B40, 16W50.Given a grading Γ : L ⨁ = g ∈ G L g on a nonassociative algebra L by an abelian group G, we have two subgroups of Aut(L): the automorphisms that stabilize each component L g ...
Kochetov, Mikhail, Elduque, Alberto
core  

Binomial Skew Polynomial Rings, Artin-Schelter Regularity, and Binomial Solutions of the Yang-Baxter Equation [PDF]

open access: yes, 2004
2000 Mathematics Subject Classification: Primary 81R50, 16W50, 16S36, 16S37.Let k be a field and X be a set of n elements. We introduce and study a class of quadratic k-algebras called quantum binomial algebras. Our main result shows that such an algebra
Gateva-Ivanova, Tatiana
core  

Research on multiple bubbles in China's multi-level stock market. [PDF]

open access: yesPLoS One, 2021
Li G, Xiao M, Yang X, Guo Y, Yang S.
europepmc   +1 more source

Centers in domains with quadratic growth

open access: yesOpen Mathematics, 2005
Smoktunowicz Agata
doaj   +1 more source

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