title: Synchronization in complex networks with age ordering.
abstract: The propensity for synchronization is studied in a complex network of asymmetrically coupled units, where the asymmetry in a given link is determined by the relative age of the involved nodes. In growing scale-free networks, synchronization is enhanced when couplings from older to younger nodes are dominant. We describe the requirements for such an effect in a more general context and compare with the situations in nongrowing random networks with and without a degree ordering.
authors.affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi, 6-50125 Florence, Italy.
authors.forename: D-U
authors.initials: DU
authors.lastname: Hwang
authors.forename: M
authors.initials: M
authors.lastname: Chavez
authors.forename: A
authors.initials: A
authors.lastname: Amann
authors.forename: S
authors.initials: S
authors.lastname: Boccaletti
mesh_terms: D003199:Computer Systems; D004463:Ecology; D008962:Models, Theoretical; D009415:Nerve Net; D012944:Social Support