Chapoton, F (Université Claude Bernard Lyon 1)
Thursday 31 January 2013, 14:00-15:00

Chapoton, F (Université Claude Bernard Lyon 1) Thursday 31 January 2013, 14:00-15:00

Tree-indexed series, theory and examples I

Grothendieck-Teichmüller theory goes back to A. Grothendieck's celebrated Esquisse d'un programme. In 1991, V. Drinfel'd formally introduced two Grothendieck-Teichmüller groups, the former one related to the absolute Galois group and the latter one related to the deformation theory of a certain algebraic structure (braided quasi-Hopf algebra). Introduced in algebraic topology 40 years ago, the notion of operad has enjoyed a renaissance in the 90's under the work of M. Kontsevich in deformation theory. Two proofs of the deformation quantization of Poisson manifolds, one by himself as well as one by D. Tamarkin, led M. Kontsevich to conjecture an action of a Grothendieck-Teichmüller group on such deformation quantizations, thereby drawing a precise relationship between the two themes.

Read more at: http://www.newton.ac.uk/programmes/GDO/

Grothendieck-Teichmüller theory goes back to A. Grothendieck's celebrated Esquisse d'un programme. In 1991, V. Drinfel'd formally introduced two Grothendieck-Teichmüller groups, the former one related to the absolute Galois group and the latter one related to the deformation theory of a certain algebraic structure (braided quasi-Hopf algebra). Introduced in algebraic topology 40 years ago, the notion of operad has enjoyed a renaissance in the 90's under the work of M. Kontsevich in deformation theory. Two proofs of the deformation quantization of Poisson manifolds, one by himself as well as one by D. Tamarkin, led M. Kontsevich to conjecture an action of a Grothendieck-Teichmüller group on such deformation quantizations, thereby drawing a precise relationship between the two themes. Read more at: http://www.newton.ac.uk/programmes/GDO/

Share Tree-indexed series, theory and examples I

Sign up to save your podcasts

Tree-indexed series, theory and examples I

Tree-indexed series, theory and examples I

More shows like Grothendieck-Teichmüller Groups, Deformation and Operads

Public Lectures from the Faculty of Law, University of Cambridge

LCIL International Law Centre Podcast

Philosophy

CULSCAST: The CULS Podcast

Social and Developmental Psychology Seminar Series

Faculty of Classics

Medieval History Seminars

Moral Sciences Club

Cambridge Language Sciences

PEDAL Centre