Abstract
Engel subalgebras of finite-dimensional n-Lie algebras are shown to have similar properties to those of Lie algebras. Using these, it is shown that an n-Lie algebra, all of whose maximal subalgebras are ideals, is nilpotent. A primitive 2-soluble n-Lie algebra is shown to split over its minimal ideal, and all the complements to its minimal ideal are conjugate. A subalgebra is shown to be a Cartan subalgebra if and only if it is minimal Engel, provided that the field has sufficiently many elements. Cartan subalgebras are shown to have a property analogous to intravariance.
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This work was done while the author was an Honorary Associate of the School of Mathematics and Statistics, University of Sydney
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Barnes, D.W. Engel subalgebras of n-Lie algebras. Acta. Math. Sin.-English Ser. 24, 159–166 (2008). https://doi.org/10.1007/s10114-007-1008-7
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DOI: https://doi.org/10.1007/s10114-007-1008-7