Every monomorphism of the Lie algebra of unitriangular polynomial derivations is an automorphism
classification
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algebraautomorphismderivationseverymonomorphismpolynomialunitriangularprove
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We prove that every monomorphism of the Lie algebra $\ggu_n$ of unitriangular derivations of the polynomial algebra $P_n=K[x_1,..., x_n]$ is an automorphism.
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