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arXiv · 1810.01145

Coupled McKean-Vlasov diffusions: wellposedness, propagation of chaos and invariant measures

Manh Hong Duong·Julian Tugaut
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Abstract

In this paper, we study a two-species model in the form of a coupled system of nonlinear stochastic differential equations (SDEs) that arises from a variety of applications such as aggregation of biological cells and pedestrian movements. The evolution of each process is influenced by four different forces, namely an external force, a self-interacting force, a cross-interacting force and a stochastic noise where the two interactions depend on the laws of the two processes. We also consider a many-particle system and a (nonlinear) partial differential equation (PDE) system that associate to the model. We prove the wellposedness of the SDEs, the propagation of chaos of the particle system, and the existence and (non)-uniqueness of invariant measures of the PDE system.

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Manh Hong Duong, Julian Tugaut. 2018-10-02. Coupled McKean-Vlasov diffusions: wellposedness, propagation of chaos and invariant measures. https://arxiv.org/abs/1810.01145

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