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Anti-commutative Groebner-Shirshov basis of a free Lie algebra

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arxiv 0804.0914 v1 pith:A7STCGCL submitted 2008-04-06 math.RA

Anti-commutative Groebner-Shirshov basis of a free Lie algebra

classification math.RA
keywords hallfreewordsalgebraanti-commutativebasisproductalgebras
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One of the natural ways to prove that the Hall words (Philip Hall, 1933) consist of a basis of a free Lie algebra is a direct construction: to start with a linear space spanned by Hall words, to define the Lie product of Hall words, and then to check that the product yields the Lie identities (Marshall Hall, 1950). Here we suggest another way using the Composition-Diamond lemma for free anti-commutative (non-associative) algebras (A.I. Shirshov, 1962).

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