Factorization of Formal Exponentials and
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Katrina Barron; Yi-Zhi Huang; James Lepowsky
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Article
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2000
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Elsevier Science
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English
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Let แ be a Lie algebra over a field of characteristic zero equipped with a vector space decomposition แ s แ y [ แ q , and let s and t be commuting formal variables y ww xx q ww xx commuting with แ. We prove that the map C: sแ s, t = t แ s, t ยช y ww xx q ww xx sแ s, t [ t แ s, t defined by the Campbe