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3 votes

Computing the index of a Lie algebra: what is known beyond the reductive case?

The following paper of M. Rais has a formula for index of semi-direct products that you mentioned. M. Rais "L’indice des produits semi-directs $g\ltimes E$. C. R. Acad. Sci. Paris S´er. A-B 287 (19 …
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