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Title:
On a moduli space interpretation of the Turaev cobracket

Speaker:
Florian Naef

Abstract:
Given an oriented surface, Goldman defines a Lie bracket on the vector space spanned by free homotopy classes of loops in terms of intersections. This Lie bracket is the universal version of the Atiyah-Bott Poisson structure on the moduli space of flat connections. Using self-intersections Turaev defines a Lie cobracket on loops. We give a possible interpretation of this structure on moduli spaces of flat connections in the form of a natural BV operator.

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=3702

Workshop:
Simons- Program: Poisson geometry of moduli spaces, associators and quantum field theory