Double Lie algebras of a nonzero weight


We introduce the notion of \lambda-double Lie algebra, which coincides with usual double Lie algebra when =0\lambda = 0. We state that every \lambda-double Lie algebra for 0\lambda\neq0 provides the structure of modified double Poisson algebra on the free associative algebra. In particular, it confirms the conjecture of S. Arthamonov (2017). We prove that there are no simple finite-dimensional \lambda-double Lie algebras.Comment: 27

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