The Baker-Campbell-Hausdorff Formula in the Free Metabelian Lie Algebra
Journal of Lie theory, Tome 17 (2007) no. 3, pp. 525-538
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The classical Baker-Campbell-Hausdorff formula gives a recursive way to compute the Hausdorff series $H=\ln(e^Xe^Y)$ for non-commuting $X,Y$. Formally $H$ lives in the graded completion of the free Lie algebra $L$ generated by $X,Y$. We present a closed explicit formula for $H=\ln(e^Xe^Y)$ in a linear basis of the graded completion of the free metabelian Lie algebra $L/[[L,L],[L,L]]$.
Classification :
17B01
Mots-clés : Lie algebra, metabelian Lie algebra, Hausdorff series, Baker-Campbell-Hausdorff formula, metabelian BCH formula, Zassenhaus formula, Kashiwara-Vergne conjecture
Mots-clés : Lie algebra, metabelian Lie algebra, Hausdorff series, Baker-Campbell-Hausdorff formula, metabelian BCH formula, Zassenhaus formula, Kashiwara-Vergne conjecture
@article{JLT_2007_17_3_JLT_2007_17_3_a4,
author = {V. Kurlin },
title = {The {Baker-Campbell-Hausdorff} {Formula} in the {Free} {Metabelian} {Lie} {Algebra}},
journal = {Journal of Lie theory},
pages = {525--538},
publisher = {mathdoc},
volume = {17},
number = {3},
year = {2007},
url = {http://geodesic.mathdoc.fr/item/JLT_2007_17_3_JLT_2007_17_3_a4/}
}
V. Kurlin . The Baker-Campbell-Hausdorff Formula in the Free Metabelian Lie Algebra. Journal of Lie theory, Tome 17 (2007) no. 3, pp. 525-538. http://geodesic.mathdoc.fr/item/JLT_2007_17_3_JLT_2007_17_3_a4/