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arXiv · 1902.02171

On a model for epidemic spread with interpopulation contact and repellent taxis

Chiganga Samson Ruoja·Christina Surulescu·Anna Zhigun
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Abstract

We study a PDE model for dynamics of susceptible-infected interactions. The dispersal of susceptibles is via diffusion and repellent taxis as they move away from the increasing density of infected. The diffusion of infected is a nonlinear, possibly degenerating term in nondivergence form. We prove the existence of so-called weak-strong solutions in 1D for a positive susceptible initial population. For dimension $N\geq 2$ and nonnegative susceptible initial density we show the existence of supersolutions. Numerical simulations are performed for different scenarios and illustrate the space-time behaviour of solutions.

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Chiganga Samson Ruoja, Christina Surulescu, Anna Zhigun. 2019-02-06. On a model for epidemic spread with interpopulation contact and repellent taxis. https://arxiv.org/abs/1902.02171

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