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- In the paper, we consider 2-cocycles on an infinite-dimensional Lie algebra L. We obtain all of the 2-cocycles on this Lie algebra and further determine its second cohomology group. 摘要考虑了一类无限维李代数L的二上圈。通过计算，得到了此类李代数的所有的二上圈，从而确定了L的二上同调群。
- cup product of the cohomology group 上同调群的的上积
- cohomology group with coefficients g 有系数g的上同岛
- REDUCIBILITY OF COHOMOLOGY GROUP OF A LINE BUNDLE ON G/B (G BE OF TYPE A_2) 射影簇G/B(G为A_2型)上线丛的上同调群的可约性
- HOMOTOPY GROUPS AND CUP PRODUCT OF COHOMOLOGY GROUPS 同伦群和上同调群的上乘积
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- On the homology and cohomology groups of associative sup eralgebras 结合代数的同调与上同调
- COMPOSITION FACTORS OF COHOMOLOGY GROUPS FOR QUANTUM GROUPS 量子群上同调群的合成因子
- He broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- The group of barbaric soldiers killed many people. 那群野蛮的士兵杀了很多人。
- The group was made up of doctors. 这个团体是由医生组成的。
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
- I come upon a group of children play in the street. 我遇到一群孩子在街上玩耍。
- He goes about with a group of nice boys. 他经常和一群好孩子在一起玩。
- He is a the most brisk young man in this group. 他是这个小组中最活跃的年轻人。
- He showed me a photo of a family group. 他给我看一张合家欢的照片。
- The chief accountant of a manufacturing group. 一个制造业集团的总会计师。
- The hunting group had good sport today. 今天打猎小组满载而归。
- I stand out in a group interview. 在集体面试中脱颖而出。
- He looked around the small group of mourners. 他环顾一下那一小群的送葬者。
