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arXiv 2005.05400math.DSmath.CA
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有限信息传播速度下Hegselmann-Krause模型的适定性和渐近一致性

Well posedness and asymptotic consensus in the Hegselmann-Krause model with finite speed of information propagation

Jan Haskovec

摘要:

我们认为一个变种的Hegselmann-Krause模型的共识形成代理之间的信息传播有限的速度$\mathfrak{c}$。这导致了一个系统的常微分方程(ODE)与状态相关的延迟。通过观察常微分方程组的经典适定性理论并不适用,我们证明了该模型解的整体存在唯一性。我们证明,渐近共识总是达到在空间一维设置的模型,只要代理旅行慢于$\mathfrak{c}$。我们还提供了充分条件渐近共识的空间多维设置。

英文摘要:

We consider a variant of the Hegselmann-Krause model of consensus formation where information between agents propagates with a finite speed $\mathfrak{c}$. This leads to a system of ordinary differential equations (ODE) with state-dependent delay. Observing that the classical well-posedness theory for ODE systems does not apply, we provide a proof of global existence and uniqueness of solutions of the model. We prove that asymptotic consensus is always reached in the spatially one-dimensional setting of the model, as long as agents travel slower than $\mathfrak{c}$. We also provide sufficient conditions for asymptotic consensus in the spatially multi-dimensional setting.

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