64 citations · 111 across the 26 of their papers we have counts for
5 papers · 1 filter
Asymptotic harvesting of populations in random environments
Alexandru Hening, Dang H. Nguyen, Sergiu C. Ungureanu +1
We consider the harvesting of a population in a stochastic environment whose dynamics in the absence of harvesting is described by a one dimensional diffusion. Using ergodic optima…
On a predator-prey system with random switching that never converges to its equilibrium
Alexandru Hening, Edouard Strickler
We study the dynamics of a predator-prey system in a random environment. The dynamics evolves according to a deterministic Lotka-Volterra system for an exponential random time afte…
Coexistence and extinction for stochastic Kolmogorov systems
Alexandru Hening, Dang H. Nguyen
In recent years there has been a growing interest in the study of the dynamics of stochastic populations. A key question in population biology is to understand the conditions under…
Persistence in Stochastic Lotka--Volterra food chains with intraspecific competition
Alexandru Hening, Dang H. Nguyen
This paper is devoted to the analysis of a simple Lotka-Volterra food chain evolving in a stochastic environment. It can be seen as the companion paper of Hening and Nguyen (J. of…
Stochastic Lotka-Volterra food chains
Alexandru Hening, Dang H. Nguyen
We study the persistence and extinction of species in a simple food chain that is modelled by a Lotka-Volterra system with environmental stochasticity. There exist sharp results fo…