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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > A line in the plane and the Grothendieck-Teichmueller group

## A line in the plane and the Grothendieck-Teichmueller groupAdd to your list(s) Download to your calendar using vCal - Merkulov, S (Stockholm University)
- Thursday 10 January 2013, 15:30-16:30
- Seminar Room 2, Newton Institute Gatehouse.
If you have a question about this talk, please contact Mustapha Amrani. Grothendieck-Teichmller Groups, Deformation and Operads The Grothendieck-Teichmueller group (GT) appears in many different parts of mathematics: in the theory of moduli spaces of algebraic curves, in number theory, in the theory of motives, in the theory of deformation quantization etc. Using recent breakthrough theorems by Thomas Willwacher, we argue that GT controls the deformation theory of a line in the complex plane when one understands these geometric structures via their associated operads of (compactified) configuration spaces. Applications to Poisson geometry, deformation quantization, and Batalin-Vilkovisky formalism are discussed. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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