摘要
本文研究了有限维广义Witt李超代数W的二阶上同调群H^2(W,F),其中F是一个特征p>2的代数封闭域.通过计算W到W~*的导子,得到H^2(W,F)是平凡的.应用此结果,我们可得W的中心扩张是平凡的.
In this article,we study the second cohomology group H^2(W,F) of the finite dimensional generalized Witt Lie superalgebra W,where F is an algebracially closed field of characteristic p2.By computing the derivations of W to W^*,we obtain H^2(W,F) is trivial.As applications,we determine the central extension of W is trivial.
出处
《数学杂志》
CSCD
北大核心
2010年第4期629-635,共7页
Journal of Mathematics
基金
Supported by National Natural Science Foundation of China(10871057)
Scientific Research Fund of Heilongjiang Provincial Education Department(11541102)
关键词
CARTAN型模李超代数
导子
斜导子
上同调群
modular Lie superalgebra of Cartan type
derivation
skew derivation
cohomology group