共查询到20条相似文献,搜索用时 531 毫秒
1.
代数表示理论是上个世纪七十年代初兴起的代数学的—个新的分支,而倾斜理论是研究代数表示理论的重要工具之一.本文主要对Dn型路代数倾斜模在其对应的AR-箭图上的结构特点进行研究.通过对Dn型路代数A的AR-箭图ΓA分析,证明了:Dn型路代数倾斜模T的—个必要条件是。〈T〉中至少有三个边缘点. 相似文献
2.
代数表示论的某些新进展 总被引:1,自引:0,他引:1
代数表示理论是代数学的一个新的重要分支,在近二十五年的时间里,这一理论有很大的发展,关于代数表示的基础理论的介绍可参见文献(101),本文主要从Hall代数和拟遗传代数两个方面介绍代数表示论的一些最新进展,第一章给出了Hall代数的基本理论及其方法,并且着重指出了利用这一理论和方法通过代数表示论去实现Kac-Moody李代数及相应的量子包络代数,第二章介绍了拟遗传代数及其表示理论,以及这一理论与复 相似文献
3.
在文献[3]和[6]中,Hopf箭图的路代数上的Hopf代数结构和覆盖箭图的路余代数上的Hopf代数结构分别被给出.该文通过一个箭图是Hopf箭图当且仅当它是箭图覆盖这一结论,来讨论同一箭图上给出的这两种Hopf代数结构之间的对偶关系(见定理3和定理4).作为应用,作者先得到关于定向圈的路代数的商上的Hopf代数结构的一些性质,然后证明了Sweedler的4维-Hopf代数小仅是拟三角的而且是余拟三角的.最后,作者刻画了Schurian覆盖箭图的路代数上的Hopf代数的分次自同构群. 相似文献
4.
5.
用代数表示论中方法给出了截面代数的Hochschild上同调群与其Gabriel箭图的组合性质之间的关系。 相似文献
6.
Dn型路代数本性倾斜模的一个必要条件 总被引:1,自引:1,他引:0
倾斜理论是研究代数表示理论的重要工具之一.本文主要对Dn(n≥4),E6,E7,E8型路代数倾斜模在其对应的AR-箭图上的结构持点进行研究.通过对Dn(n≥4),上E6,E7,E8型路代数A的AR-箭图ΓA分析证明了Dn≥4),E6,E7,E8型路代数本性慨斜模TA的一个必要条件是:在A的AR-箭图ΓA的每个边缘的r-轨道都有TA的不可分解直和项对应的点. 相似文献
7.
8.
从代数学的理想论以及代数簇理论,探讨了SISO多维控制系统的可反馈镇定条件,并给出反馈控制的表示.文中的主要结果建立在判定一个多变元多项式的零点集是否与由多项式刻画的凸集相交的前提之上,并用数学机械化方法实现了这一判定的过程. 相似文献
9.
希腊数学家丢番图第一次把未知数引入代数,并使用了一整套符号表示未知数,使代数中数量关系的表述变得更为紧凑、有效,为代数的发展注入了活力,推动了代数学的发展及数学思想的重大变革,所著《算术》(3世纪左右)是人类历史上最早的一部代数学巨著,与欧凡里得的《几何原本》齐名,使代数脱离了几何的特征,从而使代数成为一门独立的科学. 相似文献
10.
研究项链李代数的结构,定义了箭图Q的重箭图Q循环上的映射σ,证明了这是一个李运算.引入左右指标数组概念,利用它们把项链李代数N_Q的基分成了5类,并构造了项链李代数的一些有趣的子代数. 相似文献
11.
We introduce and study the class of weighted locally gentle quivers. This naturally extends the class of gentle quivers and gentle algebras, which have been intensively studied in the representation theory of finite-dimensional algebras, to a wider class of potentially infinite-dimensional algebras. Weights on the arrows of these quivers lead to gradings on the corresponding algebras. For natural grading by path lengths, any locally gentle algebra is Koszul. The class of locally gentle algebras consists of the gentle algebras together with their Koszul duals.Our main result is a general combinatorial formula for the determinant of the weighted Cartan matrix of a weighted locally gentle quiver. We show that this weighted Cartan determinant is a rational function which is completely determined by the combinatorics of the quiver-more precisely by the number and the weight of certain oriented cycles. 相似文献
12.
谢涛 《纯粹数学与应用数学》2010,26(5):844-849
为了探讨代数的Cartan矩阵的某些性质与代数分类的关系,通过研究完全域k上的A0型仿射箭图的一个有限维表示的自同态代数的结构与Jordan标准型的关系,并利用Jorelan标准型的组合信息得到了该自同态代数的Cartan矩阵,验证了Cartan矩阵猜想在此情形下不成立.最后提出了一个有关仿射箭图性质的猜想. 相似文献
13.
In this paper we give necessary and sufficient conditions for Auslander-Reiten quivers to be of finite representation type. If an algebra is standard this gives necessary and sufficient conditions for Auslander algebras to be of finite representation type. 相似文献
14.
Ming Lu 《Algebras and Representation Theory》2016,19(6):1257-1295
We define a class of finite-dimensional Jacobian algebras, which are called (simple) polygon-tree algebras, as a generalization of cluster-tilted algebras of type \(\mathbb {D}\). They are 2-CY-tilted algebras. Using a suitable process of mutations of quivers with potential (which are also BB-mutations) inducing derived equivalences, and one-pointed (co)extensions which preserve singularity equivalences, we find a connected selfinjective Nakayama algebra whose stable category is equivalent to the singularity category of a simple polygon-tree algebra. Furthermore, we also give a classification of algebras of this kind up to representation type. 相似文献
15.
首先给出代数闭域上三维半群代数的幂等元集和Jacobson根,并且刻画了三维半群代数的同构类.通过计算箭图,研究了三维代数的表示型.进一步,证明一个三维(或者二维)半群代数是胞腔的,当且仅当它是交换的.作为推论,得到一个左零带所对应的半群代数是胞腔的,当且仅当这个左零带是一个半格. 相似文献
16.
17.
The motivation of this paper is to study the natural quiver of an artinian algebra, a new kind of quivers, as a tool independing
upon the associated basic algebra. In Li (J Aust Math Soc 83:385–416, 2007), the notion of the natural quiver of an artinian algebra was introduced and then was used to generalize the Gabriel theorem
for non-basic artinian algebras splitting over radicals and non-basic finite dimensional algebras with 2-nilpotent radicals
via pseudo path algebras and generalized path algebras respectively. In this paper, firstly we consider the relationship between
the natural quiver and the ordinary quiver of a finite dimensional algebra. Secondly, the generalized Gabriel theorem is obtained
for radical-graded artinian algebras. Moreover, Gabriel-type algebras are introduced to outline those artinian algebras satisfying
the generalized Gabriel theorem here and in Li (J Aust Math Soc 83:385–416, 2007). For such algebras, the uniqueness of the related generalized path algebra and quiver holds up to isomorphism in the case
when the ideal is admissible. For an artinian algebra, there are two basic algebras, the first is that associated to the algebra
itself; the second is that associated to the correspondent generalized path algebra. In the final part, it is shown that for
a Gabriel-type artinian algebra, the first basic algebra is a quotient of the second basic algebra. In the end, we give an
example of a skew group algebra in which the relation between the natural quiver and the ordinary quiver is discussed. 相似文献
18.
Jean-Christophe Novelli Franco Saliola Jean-Yves Thibon 《Journal of Algebraic Combinatorics》2010,32(4):465-495
The representation theory (idempotents, quivers, Cartan invariants, and Loewy series) of the higher-order unital peak algebras
is investigated. On the way, we obtain new interpretations and generating functions for the idempotents of descent algebras
introduced in Saliola (J. Algebra 320:3866, 2008). 相似文献
19.
《数学年刊B辑(英文版)》2015,(6)
The aim of this paper is to investigate the first Hochschild cohomology of admissible algebras which can be regarded as a generalization of basic algebras.For this purpose,the authors study differential operators on an admissible algebra.Firstly,differential operators from a path algebra to its quotient algebra as an admissible algebra are discussed.Based on this discussion,the first cohomology with admissible algebras as coefficient modules is characterized,including their dimension formula.Besides,for planar quivers,the fc-linear bases of the first cohomology of acyclic complete monomial algebras and acyclic truncated quiver algebras are constructed over the field fc of characteristic 0. 相似文献
20.
The aim of this paper is to investigate the first Hochschild
cohomology of admissible algebras which can be regarded as a
generalization of basic algebras. For this purpose, the authors
study differential operators on an admissible algebra. Firstly,
differential operators from a path algebra to its quotient algebra
as an admissible algebra are discussed. Based on this discussion,
the first cohomology with admissible algebras as coefficient modules
is characterized, including their dimension formula. Besides, for
planar quivers, the $k$-linear bases of the first cohomology of
acyclic complete monomial algebras and acyclic truncated quiver
algebras are constructed over the field $k$ of characteristic $0$. 相似文献