On Levi–Malcev theorem for Leibniz algebras

The present paper is devoted to provide conditions for the Levi–Malcev theorem to hold or not to hold (i.e. for two Levi subalgebras to be or not conjugate by an inner automorphism) in the context of finite-dimensional Leibniz algebras over a field of characteristic zero. Particularly, in the case of the field C of complex numbers, we consider all possible cases in which Levi subalgebras are conjugate and not conjugate.

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