2001/06/21 by Erik Aurell, Duccio Fanelli, Aurell, Erik +1
Physics and Astronomy · #Astrophysics (astro-ph) #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #astro-ph #cond-mat.dis-nn
paper · pdf · doi:10.48550/arxiv.cond-mat/0106444
11 figures, simulations of Q model included
arxiv created 2002/01/31 · arxiv updated 2009/11/30
The non-linear evolution of one-dimensional perturbations in a three-dimensional expanding Universe is considered. A general Lagrangian scheme is derived, and compared to two previously introduced approximate models. These models are simulated with heap-based event-driven numerical procedure, that allows for the study of large systems, averaged over many realizations of random initial conditions. One of the models is shown to be qualitatively, and, in some respects, concerning mass aggregation, quantitatively similar to the adhesion model.