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arXiv 1102.1325math.PRmath.AP
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随机Vicsek模型的平均场极限

Mean-field limit for the stochastic Vicsek model

François Bolley, José A. Cañizo, José A. Carrillo

摘要:

我们考虑连续版本的Vicsek模型与噪声,提出作为一个模型的集体行为的个人与一个固定的速度。我们严格地推导出当粒子数N趋于无穷大时所满足的动力学平均场偏微分方程,量化了一粒子定律对偏微分方程解的收敛性。为此,我们适应一个经典的耦合参数,目前的情况下,粒子系统和偏微分方程定义在一个表面上,而不是在整个空间。作为研究的一部分,我们给出了粒子系统和偏微分方程的存在性和唯一性结果。

英文摘要:

We consider the continuous version of the Vicsek model with noise, proposed as a model for collective behavior 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. As part of the study we give existence and uniqueness results for both the particle system and the PDE.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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