1) cohomology element
上同调元素
1.
Let a character triple (G,N,θ) be associated with a cohomology element ω(θ) being the schur multiplier of G/N,∈(H~2(C/N,C~*)), that the map ω preserves products of characters whenever they are well defined was proved, and then the isomorphism problem of two character triples and the extendibility of fully factored characters of normal solvable subgroups were studied by using this result.
文章探讨了与特征标三元组(G,N,θ)相伴的上同调元素ω(θ)∈H2(G/N,C*)的若干乘法性质,并用此研究了两个特征标三元组的同构问题,以及可解正规子群上完全可分解的特征标到大群的扩张问题。
2.
By some technique, for example, projective repressentation, the theory of coho-mology and so on, we difine a cohomology element ω(θ) in H~2(G/N, C) associated with a character triple (G,N,θ).
借助射影表示以及上同调理论等技术,对每个特征标三元组(G,N,θ)均定义了一个上同调元素ω(θ)∈H~2(G/N,C~*)以描述θ的可扩张性障碍,即θ可扩张为G的特征标当且仅当ω(θ)=1。
2) homologous elements
同调元素
3) ACE method
眼上色元素调节方法
4) cohomology
[kəuhə'mɔlədʒi]
上同调
1.
The Commutants and Cohomology of Maximal Triangular Algebras;
极大三角代数的交换子和上同调
2.
On the homology and cohomology groups of associative superalgebras;
结合代数的同调与上同调
3.
In this paper, we get a computational formula of the cohomology groups Hq(X, ■(L)), (0≤q≤n) of a class of non-primary Hopf surface X with arbitrary fundamental group by the tool of generalized Douady sequence and group action.
我们利用推广了Douady序列,利用群作用的方法,具体给出了一类具有非交换基本群的Hopf曲面上全纯线丛上同调维数的计算公式。
5) cohomology groups
上同调群
1.
The information about the first Chern class makes the cohomology groups and homotopy groups of the configuration space worked out.
由此又算出了它的上同调群与同伦群。
6) cohomology
[kəuhə'mɔlədʒi]
上同调群
1.
The theory of homology and cohomology is very important in mathematics.
本文结合超代数上同调群的定义,研究得到了具有相伴单位元1的结合超代数的上同调群的一些较好的性质。
补充资料：同调
1.音调相同，比喻有相同的志趣或主张。 2.喻指志趣或主张一致的人。 3.音韵学术语。谓声调相同。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条