METRIC LIE N-ALGEBRAS AND DOUBLE EXTENSIONS
METRIC LIE N-ALGEBRAS AND DOUBLE EXTENSIONS
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发表时间:
2008
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通讯作者:
E. F. '. Farrill
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作者:
E. F. '. Farrill
We prove a structure theorem for Lie n-algebras possessing an invariant inner product. We define the notion of a double extension of a metric Lie n-algebra by another Lie n-algebra and prove that all metric Lie n-algebras are obtained from the simple and one-dimensional ones by iterating the operations of orthogonal direct sum and double extension.