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1. CJM 2006 (vol 58 pp. 1291)

Weimar-Woods, Evelyn
The General Structure of $G$-Graded Contractions of Lie Algebras I. The Classification
We give the general structure of complex (resp., real) $G$-graded contractions of Lie algebras where $G$ is an arbitrary finite Abelian group. For this purpose, we introduce a number of concepts, such as pseudobasis, higher-order identities, and sign invariants. We characterize the equivalence classes of $G$-graded contractions by showing that our set of invariants (support, higher-order identities, and sign invariants) is complete, which yields a classification.

Keywords:Lie algebras, graded contractions
Categories:17B05, 17B70

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