Asymptotic behaviour of solutions to abstract logistic equations.
Math Biosci
; 206(2): 216-32, 2007 Apr.
Article
en En
| MEDLINE
| ID: mdl-16216287
ABSTRACT
We analyze the asymptotic behaviour of solutions of the abstract differential equation u'(t)=Au(t)-F(u(t))u(t)+f. Our results are applicable to models of structured population dynamics in which the state space consists of population densities with respect to the structure variables. In the equation the linear term A corresponds to internal processes independent of crowding, the nonlinear logistic term F corresponds to the influence of crowding, and the source term f corresponds to external effects. We analyze three separate cases and show that for each case the solutions stabilize in a way governed by the linear term. We illustrate the results with examples of models of structured population dynamics -- a model for the proliferation of cell lines with telomere shortening, a model of proliferating and quiescent cell populations, and a model for the growth of tumour cord cell populations.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Modelos Logísticos
/
Proliferación Celular
/
Modelos Biológicos
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Math Biosci
Año:
2007
Tipo del documento:
Article
País de afiliación:
Reino Unido