Results 111 to 120 of about 290 (163)

DYNAMICS OF DELAYED NICHOLSON’S BLOWFLIES MODELS

Journal of Biological Systems, 2022
The extinction and the persistence of the population of the harmful sheep blowfly (Lucilia cuprina) are discussed in this paper through a stochastic mathematical model. Using appropriate Lyapunov functionals, the extinction of these flies depends on the time to oviposition and the time between generations.
I. M. ELBAZ, H. EL-METWALLY, M. A. SOHALY   +2 more
openaire   +1 more source

Stochastic Nicholson’s blowflies model with delays

International Journal of Biomathematics, 2022
In this research work, we introduce a new concept of double measure ergodic processes to identify the spaceof double measure pseudo almost periodic (or pap) processes in the pth mean sense. We display some findings regarding the completeness as well as the composition theorems and the invariance of the space consisting in double measure pap processes.
Nadia Belmabrouk, Mondher Damak, Mohsen Miraoui   +2 more
openaire   +1 more source

A new approach for positive almost periodic solutions to a class of Nicholson’s blowflies model

Journal of Computational and Applied Mathematics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hui-Sheng Ding, Juan J Nieto
exaly   +3 more sources

Bifurcation analysis on a discrete model of Nicholson's blowflies

Journal of Difference Equations and Applications, 2008
In this paper, the discrete Nicholson's blowflies model with delay is considered. First, the stability of the equilibria of the system is investigated by analyzing the characteristic equation and then the existence of fold and Neimark–Sacker bifurcations are verified.
Chuncheng Wang, Junjie Wei
exaly   +2 more sources

Analysis of a nonautonomous Nicholson Blowfly model

Physica A: Statistical Mechanics and its Applications, 1999
Abstract Most dynamic models describing population evolution contain one or more parameters. The parameters are treated as fixed constants and qualitative results, such as stability of equilibria, are calculated using this assumption. In reality, however, the parameters are mathematically evaluated by statistical methods in which the error is ...
Diana M. Thomas, Freda Wasserstein-Robbins   +1 more
openaire   +1 more source

On μ-stability of a Nicholson’s blowflies model with unbounded time-varying delay

Applied Mathematics Letters, 2022
In this paper, the authors study the following Nicholson's blowflies model with an unbounded time-varying delay: \[ \dot{x}(t)=-ax(t)+bx(t-\tau(t))e^{-rx(t-\tau(t))} \] with the initial condition \(x(s)=\varphi(s)\) for \(s\in(-\infty,0]\), where \(\varphi\in C((-\infty,0],\mathbb{R}_{+})\) and \(\varphi> 0\). The main purpose of this paper is to study
Lian Duan, Yinjie Qian
openaire   +2 more sources

Pseudo almost periodic solution of Nicholson’s blowflies model with mixed delays

Applied Mathematical Modelling, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Farouk Cherif
exaly   +2 more sources

PERMANENCE FOR A DISCRETE NICHOLSON'S BLOWFLIES MODEL WITH FEEDBACK CONTROL AND DELAY

International Journal of Biomathematics, 2008
Sufficient conditions are established for the permanence in a delayed discrete Nicholson's blowflies model with feedback control. Our investigation confirms that the bounded feedback terms do not have any influence on the permanence of this system.
Lin-Lin Wang, Yong-Hong Fan
openalex   +3 more sources

Bifurcation analysis of a discrete Nicholson’s blowflies model

Physica D: Nonlinear Phenomena
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lingling Liu, Jie Tian, Lan Zou
openaire   +1 more source

On the stochastic global dynamics of the delayed Nicholson’s blowflies model

Journal of Mathematical Biology
The well-known class of Nicholson's blowflies equations is considered under stochastic perturbations of the white noise type. We are concerned about the stability of the zero solution x 0 which means the extinction of the species of Nicholson's blowflies, and the positive equilibrium x ∗ which means their persistence.
Islam M. Elbaz, M. A. Sohaly, H. El-Metwally   +2 more
openaire   +3 more sources