Geodesic
Zassenhaus Lie idempotents, $q$-bracketing and a new exponential/logarithm correspondence
Journal of Algebraic Combinatorics, Tome 12 (2000) no. 3, pp. 251-277.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We introduce a new $q$-exponential/logarithm correspondance that allows us to solve a conjecture relating Zassenhauss Lie idempotents with other Lie idempotents related to the $q$-bracketing operator.
Keywords: fer-zassenhauss formula, Lie idempotents, noncommutative symmetric functions, logarithm, exponential 
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     author = {Duchamp, G. and Krob, D. and Vassilieva, E.A.},
     title = {Zassenhaus {Lie} idempotents, $q$-bracketing and a new exponential/logarithm correspondence},
     journal = {Journal of Algebraic Combinatorics},
     pages = {251--277},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2000__12_3_a2/}
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Duchamp, G.; Krob, D.; Vassilieva, E.A. Zassenhaus Lie idempotents, $q$-bracketing and a new exponential/logarithm correspondence. Journal of Algebraic Combinatorics, Tome 12 (2000) no. 3, pp. 251-277. http://geodesic.mathdoc.fr/item/JAC_2000__12_3_a2/