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cond-mat.stat-mech1998
A nonlinear evolution equation for sand ripples based on geometry and conservation
Zoltan Csahok, Chaouqi Misbah, Alexandre Valance
From geometry and conservation we derive two nonlinear evolution equations for sand ripples. In the case of a strong wind leading to a net erosion of the sand bed, ripples obey the…
cond-mat.stat-mech1998★ 57 cited
Lattice-gas model for collective biological motion
Zoltan Csahok, Tamas Vicsek
A simple self-driven lattice-gas model for collective biological motion is introduced. We find weakly first order phase transition from individual random walks to collective migrat…