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Derived modular envelopes and moduli spaces of bordered Riemann surfaces

Presented by: 
Clemens Berger Université de Nice
Date: 
Tuesday 31st July 2018 - 14:00 to 15:00
Venue: 
INI Seminar Room 2
Abstract: 
We study the derived modular envelope of several cyclic operads. More specifically, using a cyclic W-construction as cofibrant replacement we get a derived modular envelope (of the cyclic operad of planar structures) which can be interpreted as a ribbon graph model for the corresponding moduli space of bordered Riemann surfaces. (Joint work with Ralph Kaufmann).




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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons