Results 91 to 100 of about 331 (165)

Coupled Parabolic and Hyperbolic Equations Modeling Age-Dependent Epidemic Dynamics with Nonlinear Diffusion

open access: yes, 2008
. This paper considers a system of coupled second order parabolic and first order hyperbolic equations arising from the age-dependent diffusion population dynamics with an infectious disease.
Chaocheng Huang, Jiongmin Yong
core  

Enacting caring presence in a conflicting environment: the case of state patients

open access: yes
This study presents a novel predator-prey model that incorporates Susceptible-Infected (SI) disease dynamics within the predator population. In this model, infected predators face a higher risk of death due to hunger compared to disease-induced death ...
S.C. Oukouomi Noutchie et al
core   +1 more source

PERMANENCE IN A DISCRETE n-SPECIES NON-AUTONOMOUS LOTKA–VOLTERRA COMPETITIVE SYSTEMS WITH INFINITE DELAYS AND FEEDBACK CONTROL

open access: yes
In this paper, we deal with a discrete n-species non-autonomous Lotka–Volterra competitive systems with infinite delays and feedback control, obtain sufficient conditions for the permanence of the systems.Discrete, infinite delay, Lotka–Volterra ...
XIAOXING CHEN
core  

Optimal Harvesting in the Presence of Density- Dependent Extinction Probabilities

open access: yes, 2001
We consider the optimal harvesting strategy of a stochastically fluctuating population in the presence of a density-dependent extinction probability. We demonstrate that in contrast to ordinary models neglecting density dependence, a density dependent ...
Mats Gyllenberg   +3 more
core  

On the Complete Life Career of Populations in Environments with a Finite Carrying Capacity

open access: yes, 2015
If a general branching process evolves in a habitat with a finite carrying capacity, i. e. a number such that reproduction turns subcritical as soon as population size exceeds that number, then the population may either die out quickly, or else grow up ...
Jagers, Peter
core  

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