Abstract
We consider the continuous version of the Vicsek model with noise, proposed as a model for collective behaviour of individuals with a fixed speed. We rigorously derive the kinetic mean-field partial differential equation satisfied when the number N of particles tends to infinity, quantifying the convergence of the law of one particle to the solution of the PDE. For this we adapt a classical coupling argument to the present case in which both the particle system and the PDE are defined on a surface rather than on the whole space Rd. As part of the study we give existence and uniqueness results for both the particle system and the PDE.
Original language | English |
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Pages (from-to) | 339-343 |
Number of pages | 5 |
Journal | Applied Mathematics Letters |
Volume | 25 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Mar 2012 |