Commutative post-Lie algebra structures on Lie algebras
classification
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keywords
algebraalgebrascommutativecpa-structurespost-lieclassifycpa-structuredecomposition
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We show that any CPA-structure (commutative post-Lie algebra structure) on a perfect Lie algebra is trivial. Furthermore we give a general decomposition of inner CPA-structures, and classify all CPA-structures on parabolic subalgebras of simple Lie algebras.
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