84 citations · 184 across the 5 of their papers we have counts for
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nlin.CD2005★ 8 cited
Lyapunov spectra of billiards with cylindrical scatterers: comparison with many-particle systems
Astrid S. de Wijn
The dynamics of a system consisting of many spherical hard particles can be described as a single point particle moving in a high-dimensional space with fixed hypercylindrical scat…
nlin.CD2004★ 12 cited
The Kolmogorov-Sinai entropy for dilute systems of hard particles in equilibrium
Astrid S. de Wijn
In an equilibrium system, the Kolmogorov-Sinai entropy, , equals the sum of the positive Lyapunov exponents, the exponential rates of divergence of infinitesimal p…
nlin.CD2003★ 59 cited
Goldstone modes in Lyapunov spectra of hard sphere systems
Astrid S. de Wijn, Henk van Beijeren
In this paper, we demonstrate how the Lyapunov exponents close to zero of a system of many hard spheres can be described as Goldstone modes, by using a Boltzmann type of approach.…