November 4th, 2010
Building E, Room E1
12.00 a.m.
 

Marc Barthelemy
Institut de Physique Theorique
CEA, Saclay France

Most networks are embedded in space and consequently, their topology is not independent from spatial constraints. In particular, these constraints can induce a hierarchical organization with hubs controlling specific regions of space, non-trivial correlations between the weights, the connectivity pattern and the actual spatial distances of vertices, and the emergence of anomalous fluctuations in the betweenness-degree correlation function. In this talk I will illustrate these effects both from an empirical and modeling point of view, with various examples ranging from the large-scale air travel network to smaller scales of inter- and intra- cities transportation networks.