Derivations of locally simple Lie algebras
Derivations of locally simple Lie algebras
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局部简单李代数的推导
DOI:
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发表时间:
2005
期刊:
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通讯作者:
K. Neeb
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作者:
K. Neeb
Let g be a locally finite Lie algebra over a field of characteristic zero which is a direct limit of finite-dimensional simple ones. In this short note it is shown that each invariant symmetric bilinear form on g is invariant under all derivations and that each such form defines a natural embedding der g ↪→ g∗ . The latter embedding is used to determine der g explicitly for all locally finite split simple Lie algebras.