title: Phase transitions in an aging network.
abstract: We consider a growing network in which an incoming node gets attached to the ith existing node with the probability Pi(i) is proportional to ki(beta)taui(alpha)i , where ki is the degree of the ith node and taui its present age. The phase diagram in the alpha-beta plane is obtained. The network shows scale-free behavior, i.e., the degree distribution Pk approximately k(-gamma) with gamma=3 only along a line in this plane. Small world property, on the other hand, exists over a large region in the phase diagram.
authors.affiliation: Department of Physics, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700009, India. kamalikabasu2000@yahoo.com
authors.forename: Kamalika Basu
authors.initials: KB
authors.lastname: Hajra
authors.forename: Parongama
authors.initials: P
authors.lastname: Sen
mesh_terms: D000375:Aging / Q000502:physiology*; D003198:Computer Simulation; D008959:Models, Neurological; D015233:Models, Statistical; D009415:Nerve Net / Q000502:physiology*; D009473:Neuronal Plasticity / Q000502:physiology*; D017711:Nonlinear Dynamics