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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. 摘要考慮了一類無限維李代數L的二上圈。通過計算，得到了此類李代數的所有的二上圈，從而確定了L的二上同調群。
- cup product of the cohomology group 上同調群的的上積
- cohomology group with coefficients g 有係數g的上同島
- REDUCIBILITY OF COHOMOLOGY GROUP OF A LINE BUNDLE ON G/B (G BE OF TYPE A_2) 射影簇G/B(G為A_2型)上線叢的上同調群的可約性
- Ok. Luxury, mid-size or compact? 好。是要豪華型、中型還是小型車？
- HOMOTOPY GROUPS AND CUP PRODUCT OF COHOMOLOGY GROUPS 同倫群和上同調群的上乘積
- Education should not be restricted to any one specific age group. 教育不應限制在任何特定的年齡組上。
- You can get the feel of a compact car in no time. 你很快就能把小型車摸清楚。
- On the homology and cohomology groups of associative sup eralgebras 結合代數的同調與上同調
- I appreciate his compact style of writing. 我欣賞他那簡潔的文體。
- COMPOSITION FACTORS OF COHOMOLOGY GROUPS FOR QUANTUM GROUPS 量子群上同調群的合成因子
- His uncle is a man of compact build. 他叔父身體結實。
- He broke away from that lawless group years ago. 他在幾年前脫離了那個非法團體。
- The compact disc is a miracle of modern technology. 激光唱片是當代技術的奇葩。
- The group of barbaric soldiers killed many people. 那群野蠻的士兵殺了很多人。
- The group was made up of doctors. 這個團體是由醫生組成的。
- The two states made a compact to co-operate against terrorism. 兩國簽訂了反恐怖主義合作協議。
- A group of boys dashed out of the classroom. 一群男孩子從教室里衝出來。
- 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. 他經常和一群好孩子在一起玩。
