A combinatorial construction of symplectic expansions

Published 12 Sep 2010 in math.GT and math.AT | (1009.2219v2)

Abstract: The notion of a symplectic expansion directly relates the topology of a surface to formal symplectic geometry. We give a method to construct a symplectic expansion by solving a recurrence formula given in terms of the Baker-Campbell-Hausdorff series.

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Yusuke Kuno

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