The Algebra & Geometry of Modern Physics
sala 2.23, ul. Pasteura 5
2017-06-01 (15:15) 
Noémie Combe (Institut de Mathématiques de Marseille)
A new cellulation for the n-th configuration space of R^2 and moduli space M(0,n)
The first point of this seminar is to introduce the configuration space and the moduli space M(0,n) for genus 0 curves with n distinct points. The second point will be to consider relations between the configuration space for R^2 to braid groups. We present as well the idea of a new cell decomposition for M(0,n) which is reminiscent to Shabat-Voevodsky-Penner-Grothendieck cellulation for the Teichmuller space T_{g,n} for g>0.