1) Hochschild cohomology ring
Hochschild上同调环
1.
Based on the analysis of the muiltiplicative structure of Koszul algebras given by Buchweitz et al,a sufficient and necessary condition for the multiplicative structure of Hochschild cohomology rings of Koszul algebras to be essentially the jux- taposition of parallel paths is obtained.
基于Buchweitz等人对Koszul代数的Hochschild上同调环的乘法结构的细致分析,给出了Koszul代数的Hochschild上同调环的乘法本质上是平行路的毗连的一个充要条件,并由此重新证明了二次三角string代数的Hochschild上同调环的乘法是平凡的,从而改进了Bustamante的证明。
2) Hochschild cohomology
Hochschild上同调
1.
According to the properties of path coalgebras,using the definition and methods of calculating Hochschild cohomology given by Doi Y,as well as the researching methods of Hochschild cohomology in algebras,we study the coradicals of path coalgebras,the Hochschild cohomology of path coalgebras and quotient coalgebras of path coalgebras.
根据路余代数的性质,利用Hochschild上同调的定义与计算方法,借鉴代数中的Hochschild上同调的研究方法,研究了路余代数的余根、路余代数及路余代数的商余代数的Hochschild上同调。
3) Hochschild cohomology group
Hochschild上同调群
1.
Hochschild cohomology groups of the hereditary algebras with three simple modules;
具有三个单模的有限维遗传代数的Hochschild上同调群
2.
Based on the minimal projective bimodule resolution constructed by Bardzell,the dimensions of all Hochschild cohomology groups ofΛ_d are calculated explicitly in terms of combinatorics.
设Λ_d是Fibonacci代数,基于对Bardzell极小投射双模分解的细致分析,用组合的方法清晰地计算了Fibonacci代数Λ_d的各阶Hochschild上同调群的维数。
3.
Based on the minimal pro- jective bimodule resolution constructed by Bardzell,the dimensions of all Hochschild cohomology groups of A are explicitly calculated.
设A是有限表示型遗传代数A=kQ的投射模范畴proj A上的根双模rad(-,-)所对应的拟遗传代数,基于Bardzell构造的极小投射双模分解,A的各阶Hochschild上同调群的维数被清晰地计算。
4) Hochschild cohomology
Hochschild上同调群
1.
In this note the formu- lae on the dimensions of the first and the second Hochschild cohomology groups of l-hereditary algebras are obtained explicitly.
设∧是域k上的有限维代数,则∧的低阶Hochschild上同调群在有限维代数的表示理论中扮演着重要的角色,该文得到了l-遗传代数的一阶和二阶Hochschild上同调群的维数方程。
2.
In this thesis we dicuss the category RepR of representations of generalized path algebras ,Hochschild cohomology of generalized path algebras, Hochschild cohomology of quotients of generalized path algebras.
本文研究了广义路代数的表示范畴和广义路代数以及广义路代数商代数的Hochschild上同调群。
5) Hochschild homology group
Hochschild同调群
1.
Based the minimal projective bimodular resolution constructed by Buchweitz et al, the dimensions of all Hochschild homology groups of Aq are calculated explicitly.
设Aq=k/(x2,xy+qyx,y2)是含有两个变量的广义外代数,基于Buch- weitz等人构造的极小投射双模解,广义外代数的各阶Hochschild同调群的维数被清晰地计算。
6) Hochschild homology
Hochschild同调
1.
For a path algebra A = kQ with Q an arbitrary quiver, consider the Hochschild homology groups Hn(A) and the homology groups TornAe(A, A), where Ae is the enveloping algebra of A.
对任意箭图Q,我们研究路代数A=kQ的Hochschild同调群H_n(A)和同调群Tor_n~(A~E)(A,A),其中A~e是代数A的包络代数。
2.
In this paper, Firstly, we researched the Hochschild homology of algebras with heredity ideals.
代数的Hochschild同调和上同调的研究始于G。
补充资料:上同调环
上同调环
cohomology ring
上同调环!e汰哪J吃y ring;Ko.oMo月。;,.KoJ、u01 一种环.其加法群是分次士_同调群 。H‘,f戈/扒 陀日其中X是链复形,丹是系数群.乘法由下述映射的线性集定义: ,,。:H用(大月)②H月(X,A),,I”’‘”(X,A-对所有m.,;)。.它是内上同调乘法(杯积).上同调环有分次环的结构. 关于映射,爪的存在性,只需要有满足某些附加性质的映射矛,。;厂。。一X。⑧戈的集合,和映射A⑧A一A即系数群,j中的乘法就够r,(见12]).矛m。诱导映射 Hom(X。,A)⑧Hom(茂,A)一、Hom(孤。,4),这个映射又诱导t_同调的映射,。,. 特别地,在分次群H(G,Z)二④靡。H”(G,Z八几定义了一个环结构其中G是群,Z是有平凡G作用的整数环.相应的映射、,,、。就是日积这是一个有单位元的结合环,对于度数分别为p,“的齐性只:“,b〔H(G,Z),有 ab=(一l)p,ba 类似地,日积在群①众。“”(x,z)上定义r环结构,这里H‘’(X,Z)是拓扑空间X的系数在Z中的。维奇异_仁同调群
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