55 citations · 55 across the 1 of their papers we have counts for
3 papers
Interplay between function and structure in complex networks
Timothy C. Jarrett, Douglas J. Ashton, Mark Fricker +1
We show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanatio…
Fast Simulation of Facilitated Spin Models
Douglas J. Ashton, Lester O. Hedges, Juan P. Garrahan
We show how to apply the absorbing Markov chain Monte Carlo algorithm of Novotny to simulate kinetically constrained models of glasses. We consider in detail one-spin facilitated m…
Effect of congestion costs on shortest paths through complex networks
Douglas J. Ashton, Timothy C. Jarrett, Neil F. Johnson
We analyze analytically the effect of congestion costs within a physically relevant, yet exactly solvable network model featuring central hubs. These costs lead to a competition be…