Abstract
In this work we study the coupling of a nonlinear renewal equation to an ordinary differential equation. We start with existence and uniqueness issues for the coupled equations and, in particular cases, we study the long-time behaviour. The novelty here is the nonlinearity in the renewal equation. This model arises in the context of atherosclerosis. The renewal part accounts for the inflammatory process: leucocyte recruitment in the arterial wall, differentiation when internalizing low-density lipoprotein (LDL) and death. The ordinary differential equation describes the LDL dynamics in the arterial wall, leucocyte absorption and release in the blood.
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Meunier, N., Muller, N. Mathematical Study of an Inflammatory Model for Atherosclerosis: A Nonlinear Renewal Equation. Acta Appl Math 161, 107–126 (2019). https://doi.org/10.1007/s10440-018-0206-x
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DOI: https://doi.org/10.1007/s10440-018-0206-x