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The General Structure of G-Graded Contractions of Lie Algebras I. The Classification
Published online by Cambridge University Press: 20 November 2018
Abstract
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.
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- Copyright © Canadian Mathematical Society 2006
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