Journée-séminaire de combinatoire

(équipe CALIN du LIPN, université Paris-Nord, Villetaneuse)

Le 02 avril 2013 à 14h00 en B107, Valentin Bonzom nous parlera de : A set of triangulations of manifolds in arbitrary dimensions from multi-graphs with colored edges

Résumé : I will talk about families of triangulations of manifolds in arbitrary dimensions which can be represented by multi-graphs with colored edges. I will focus on an important family of such triangulations, called melonic triangulations, which controls the behavior of integrals over random tensors (a promising approach to quantum gravity). These integrals can be solved by an exact counting of the melonic triangulations. If time permits, I will describe the relation to loop models on random planar maps, and also an interesting family of colored triangulations related to meanders.


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