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* Corresponding author 1 CMAP - Centre de Mathématiques Appliquées - Ecole Polytechnique 2 LPP - Laboratoire Paul Painlevé

Abstract : We describe the evolution of the quantity of parasites in a population of cells which divide in continuous-time. The quantity of parasites in a cell follows a Feller diffusion, which is splitted randomly between the two daughter cells when a division occurs. The cell division rate may depend on the quantity of parasites inside the cell and we are interested in the cases of constant or monotone division rate. We first determine the asymptotic behavior of the quantity of parasites in a cell line, which follows a Feller diffusion with multiplicative jumps. We then consider the evolution of the infection of the cell population and give criteria to determine whether the proportion of infected cells goes to zero recovery or if a positive proportion of cells becomes largely infected proliferation of parasites inside the cells.

Keywords : Branching Processes Feller diffusion Multiplicative jumps Parasite infection





Autor: Vincent Bansaye - Viet Chi Tran -

Fuente: https://hal.archives-ouvertes.fr/



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