An Introduction to Universal Central Extensions of Lie Superalgebras
An Introduction to Universal Central Extensions of Lie Superalgebras
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DOI:
10.1007/978-1-4613-0235-3_10
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发表时间:
2003
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影响因子:
--
通讯作者:
E. Neher
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文献类型:
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作者:
E. Neher
We provide an introduction to the theory of universal central extensions of Lie superalgebras. In particular, we show that a Lie superalgebra has a universal central extension if and only if it is perfect. We also consider the question of lifting automorphisms and derivations to the universal central extension, and describe the universal central extension of a semidirect product.