Article

Stability and regularity results for a size-structured population model

Citation

Farkas JZ & Hagen T (2007) Stability and regularity results for a size-structured population model. Journal of Mathematical Analysis and Applications, 328 (1), pp. 119-136. https://doi.org/10.1016/j.jmaa.2006.05.032

Abstract
In the present paper a nonlinear size-structured population dynamical model with size and density dependent vital rate functions is considered. The linearization about stationary solutions is analyzed by semigroup and spectral methods. In particular, the spectrally determined growth property of the linearized semigroup is derived from its long-term regularity. These analytical results make it possible to derive linear stability and instability results under biologically meaningful conditions on the vital rates. The principal stability criteria are given in terms of a modified net reproduction rate.

Keywords
Population dynamics; Size-structured; Stability theory; Spectral analysis

Journal
Journal of Mathematical Analysis and Applications: Volume 328, Issue 1

StatusPublished
Publication date30/04/2007
PublisherElsevier
ISSN0022-247X