Answers are grounded in this paper and cite their sources.
The Wigner–Inönü contraction is generalized to include gradings other than Z2 and the formalism is applied to obtain all toroidal contractions of sl(3,C). Examples of contractions based on nontoroidal gradings are also given.
No takes yet. Share an insight, caveat, or question.
Couture et al. (1991) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: