Mardi 3 Février
Heure: 
14:00  17:00 
Lieu: 
Salle B107, bâtiment B, Université de Villetaneuse 
Résumé: 
Graph polynomials and relations with physics 
Description: 
Adrian Tanasa In the first part of the talk I will introduce the Tuttepolynomial of graphs and explicitly show its relation withpolynomials appearing in the socalled parametric representation ofintegrands canonically associated to graphs in quantum field theory.In the second part of the talk I will show a new proof of thecelebrated property of universality of the Tutte polynomial of graphs(or matroids), proof which does not require the usual edge inductionarguments. Finally, I will present how this proof generalizes for theuniversality property of the BollobasRiordan polynomial of ribbongraphs (or embedded graphs). 

