Results 11 to 20 of about 288 (50)

Cubic rings and their ideals

open access: yes, 2010
We give an explicit description of cubic rings over a discrete valuation ring, as well as a description of all ideals of such rings.Comment: 9 ...
Drozd, Yuriy A., Skuratovskii, Ruslan V.
core   +1 more source

Brauer-Thrall for totally reflexive modules over local rings of higher dimension

open access: yes, 2013
Let $R$ be a commutative Noetherian local ring. Assume that $R$ has a pair $\{x,y\}$ of exact zerodivisors such that $\dim R/(x,y)\ge2$ and all totally reflexive $R/(x)$-modules are free.
AV [ERROR while converting LaTeX/Unico   +22 more
core   +1 more source

The geometry of uniserial representations of algebras II. Alternate viewpoints and uniqueness [PDF]

open access: yes, 2014
We provide two alternate settings for a family of varieties modeling the uniserial representations with fixed sequence of composition factors over a finite dimensional algebra.
Bongartz, Klaus   +1 more
core  

On the representation dimension of skew group algebras, wreath products and blocks of Hecke algebras

open access: yes, 2012
We establish bounds for the representation dimension of skew group algebras and wreath products. Using this, we obtain bounds for the representation dimension of a block of a Hecke algebra of type A, in terms of the weight of the block.
Bergh, Petter Andreas, Turner, Will
core   +1 more source

A characterization of admissible algebras with formal two-ray modules

open access: yes, 2005
In the paper we characterize, in terms of quivers and relations, the admissible algebras with formal two-ray modules introduced by G. Bobi\'nski and A. Skowro\'nski [Cent. Eur. J.Math.1 (2003), 457--476].Comment: Mainly correcting typos.
Drozd Yu. A.   +5 more
core   +3 more sources

Endomorphism rings of finite global dimension [PDF]

open access: yes, 2004
For a commutative local ring $R$, consider (noncommutative) $R$-algebras $\Lambda$ of the form $\Lambda = End_R(M)$ where $M$ is a reflexive $R$-module with nonzero free direct summand.
Leuschke, Graham J.
core   +3 more sources

Gabriel-Roiter inclusions and Auslander-Reiten theory

open access: yes, 2009
Let $\Lambda$ be an artin algebra. The aim of this paper is to outline a strong relationship between the Gabriel-Roiter inclusions and the Auslander-Reiten theory. If $X$ is a Gabriel-Roiter submodule of $Y,$ then $Y$ is shown to be a factor module of an
Ringel, Claus Michael
core   +1 more source

Dimensions of finite type for representations of partially ordered sets [PDF]

open access: yes, 2004
We consider the dimensions of finite type of representations of a partially ordered set, i.e. such that there is only finitely many isomorphism classes of representations of this dimension. We give a criterion for a dimension to be of finite type.
Drozd, Yuriy A., Kubichka, Eugene A.
core   +1 more source

Derived tame and derived wild algebras [PDF]

open access: yes, 2003
We prove that every finite dimensional algebra over an algebraically closed field is either derived tame or derived wild.
Drozd, Yuriy A.
core   +3 more sources

Home - About - Disclaimer - Privacy