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Macquarie University  Department of Mathematics

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Workshop on Categorical Methods in Algebra, Geometry and Mathematical Physics

Satellite to the StreetFest conference in honour of Ross Street's sixtieth birthday

July 18-21 2005, Australian National University, Canberra

Mon, 18 July:  14:30 - 15:30

Open/closed modular operads
Getzler, Ezra (Northwestern University, Evanston)

Modular operads are a generalization of cyclic operads in which
composition is along graphs which are not necessarily trees. We may
reinterpret graphs as oriented surfaces with configurations of closed
simple curves. In this talk, we explain how the theory of open/closed
modular operads emerges if we consider oriented surfaces with
anti-involutions which preserve the configuration of curves.

Typeset PDF of this abstract.