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Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: On a size-structured two-phase population model with infinite states-at-birth
Authors: Farkas, Jozsef Zoltan
Hinow, Peter
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Keywords: Size-structured populations
quasicontractive semigroups
spectral methods
asynchronous exponential growth
Issue Date: 2010
Publisher: Springer Verlag
Citation: Farkas JZ & Hinow P (2010) On a size-structured two-phase population model with infinite states-at-birth, Positivity, 14 (3), pp. 501-514.
Abstract: In this work we introduce and analyze a linear size-structured population model with infinite states-at-birth. We model the dynamics of a population in which individuals have two distinct life-stages: an "active" phase when individuals grow, reproduce and die and a second "resting" phase when individuals only grow. Transition between these two phases depends on individuals' size. First we show that the problem is governed by a positive quasicontractive semigroup on the biologically relevant state space. Then we investigate, in the framework of the spectral theory of linear operators, the asymptotic behavior of solutions of the model. We prove that the associated semigroup has, under biologically plausible assumptions, the property of asynchronous exponential growth.
Type: Journal Article
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Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author; you can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Mathematics - CSM Dept
University of Wisconsin-Madison

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