Webinaire DEVI – Paul Rochet (ENAC)

Date - Heure / Date - Hour
Date(s) - 10/12/2020
10h30 - 11h30

A coupling of the spectral measures at a vertex


I will introduce a particular coupling of the spectral measures at the vertices of a graph, whose moments count the rooted closed paths in the graph. The resulting joint spectral measure verifies numerous interesting properties that allow to recover minors of analytical functions of the adjacency matrix from its generalized moments. I’ll prove an extension of Obata’s Central Limit Theorem in growing star-graphs to the multivariate case and discuss some combinatorial properties using Viennot’s heaps of pieces point of view.

La présentation se fera en français.