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Strong laws of large numbers for a growth-fragmentation process with bounded cell sizes

Emma Horton 1 Alexander R Watson 2 
1 ASTRAL - Méthodes avancées d’apprentissage statistique et de contrôle
IMB - Institut de Mathématiques de Bordeaux, Inria Bordeaux - Sud-Ouest, UB - Université de Bordeaux, Bordeaux INP - Institut Polytechnique de Bordeaux, Naval Group
Abstract : Growth-fragmentation processes model systems of cells that grow continuously over time and then fragment into smaller pieces. Typically, on average, the number of cells in the system exhibits asynchronous exponential growth and, upon compensating for this, the distribution of cell sizes converges to an asymptotic profile. However, the long-term stochastic behaviour of the system is more delicate, and its almost sure asymptotics have been so far largely unexplored. In this article, we study a growth-fragmentation process whose cell sizes are bounded above, and prove the existence of regimes with differing almost sure long-term behaviour.
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Preprints, Working Papers, ...
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Submitted on : Thursday, July 1, 2021 - 9:14:20 PM
Last modification on : Friday, February 4, 2022 - 3:23:32 AM
Long-term archiving on: : Saturday, October 2, 2021 - 7:16:44 PM


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  • HAL Id : hal-03276236, version 1



Emma Horton, Alexander R Watson. Strong laws of large numbers for a growth-fragmentation process with bounded cell sizes. 2021. ⟨hal-03276236⟩



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