# Time Asymptotics for a Critical Case in Fragmentation and Growth-Fragmentation Equations

1 MAMBA - Modelling and Analysis for Medical and Biological Applications
LJLL - Laboratoire Jacques-Louis Lions, Inria Paris-Rocquencourt
Abstract : Fragmentation and growth-fragmentation equations is a family of problems with varied and wide applications. This paper is devoted to description of the long time time asymptotics of two critical cases of these equations, when the division rate is constant and the growth rate is linear or zero. The study of these cases may be reduced to the study of the following fragmentation equation: $\frac{\partial}{\partial t} u(t,x) + u(t,x)=\int\limits_x^\infty k_0(\frac{x}{y}) u(t,y) dy.$ Using the Mellin transform of the equation, we determine the long time behavior of the solutions. Our results show in particular the strong dependence of this asymptotic behavior with respect to the initial data.
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Cited literature [17 references]

https://hal.inria.fr/hal-01080361
Contributor : Marie Doumic <>
Submitted on : Tuesday, October 13, 2015 - 11:12:33 AM
Last modification on : Friday, March 27, 2020 - 3:20:51 AM
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Marie Doumic, Miguel Escobedo. Time Asymptotics for a Critical Case in Fragmentation and Growth-Fragmentation Equations. Kinetic and Related Models , AIMS, 2016, 9 (2), pp.47. ⟨10.3934/krm.2016.9.251⟩. ⟨hal-01080361v3⟩

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