5 citations · 7 across the 4 of their papers we have counts for
4 papers
Extinction and the Allee Effect in an Age-structured Ricker Population Model with Inter-stage Interaction
N. Lazaryan, H. Sedaghat
We study the evolution in discrete time of certain age-structured populations, such as adults and juveniles, with a Ricker fitness function. We determine conditions for the converg…
Periodic and Non-Periodic Solutions of a Ricker-type Second-Order Equation with Periodic Parameters
N. Lazaryan, H. Sedaghat
We study the dynamics of the positive solutions of a second-order, Ricker-type exponential difference equation with periodic parameters. We find that qualitatively different dynami…
Extinction, periodicity and multistability in a Ricker Model of Stage-Structured Populations
N. Lazaryan, H. Sedaghat
We study the dynamics of a second-order difference equation that is derived from a planar Ricker model of two-stage (e.g. adult, juvenile) biological populations. We obtain suffici…
On Periodic and Chaotic Orbits in a Rational Planar System
N. Lazaryan, H. Sedaghat
By folding an autonomous system of rational equations in the plane to a scalar difference equation, we show that the rational system has coexisting periodic orbits of all possible…