نتایج جستجو برای: beddington deangelis incidence

تعداد نتایج: 243259  

Journal: :Mathematical and Computer Modelling 2008
Zhijun Zeng Meng Fan

In this paper, a predator–prey system with Beddington–DeAngelis functional response is studied, where the predator preys on n competing preys. We prove that the system admits very rich dynamics, including permanence, ultimate boundedness, extinction. Moreover, under some appropriate assumptions, there exists a unique almost periodic solution which is shown to be globally asymptotically stable.

Journal: :Applied Mathematics and Computation 2012
Hong Qiu Meng Liu Ke Wang Yang Wang

This paper is concerned with a stochastic predator-prey model with Beddington DeAngelis functional response. The existence of the global solution and the ultimate boundedness of moments of the solution are proved. Moreover, we also estimate the average in time of the solution.

2014
Qiaoqin Gao Zhen Jin

A predator-prey system was studied that has a discrete delay, stage-structure, and Beddington-DeAngelis functional response, where predator species has three stages, immature, mature, and old age stages. By using of Mawhin's continuous theorem of coincidence degree theory, a sufficient condition is obtained for the existence of a positive periodic solution.

Journal: :The journal of mathematics and computer science 2022

A non-autonomous discrete commensal symbiosis model with Beddington-DeAngelis functional response is proposed and studied in this paper. Sufficient conditions are obtained for the existence of positive periodic solution system.

Journal: :Applied Mathematics and Computation 2012
Li-Ming Cai Bao-Zhu Guo Xue-Zhi Li

Keywords: Time delay Global stability Lyapunov functional Nonlinear incidence a b s t r a c t In this paper, a delayed HIV-1 infection model with nonlinear incidence of infection is reinvestigated. It is shown that if the reproduction number R > 1, then the system is permanent , and the infective equilibrium of the system is globally asymptotically stable. Thus, the global dynamics of the syste...

2013
Shuang Li Xinan Zhang

A stochastic non-autonomous predator-prey system with Beddington-DeAngelis functional response is proposed, the existence of a global positive solution and stochastically ultimate boundedness are derived. Sufficient conditions for extinction, non-persistence in the mean, weak persistence in the mean and strong persistence in the mean are established. The global attractiveness of the solution is...

Journal: :Applied Mathematics and Computation 2007
Guojian Lin Yiguang Hong

The Beddington–DeAngelis predator–prey system with distributed delay is studied in this paper. At first, the positive equilibrium and its local stability are investigated. Then, with the mean delay as a bifurcation parameter, the system is found to undergo a Hopf bifurcation. The bifurcating periodic solutions are analyzed by means of the normal form and center manifold theorems. Finally, numer...

Journal: :Advances in Mathematics 2021

In this paper we establish some easily verifiable sufficient conditions for the existence of periodic solutions nonautonomous Predator-Prey Model with Beddington-DeAngelis Functional response and time delay using Mowhins Coincidence degree method.

2003
Meng Fan Yang Kuang

In this paper, we systematically study the dynamics of a nonautonomous predator–prey system with the Beddington–DeAngelis functional response. The explorations involve the permanence, extinction, global asymptotic stability (general nonautonomous case); the existence, uniqueness and stability of a positive (almost) periodic solution and a boundary (almost) periodic solution for the periodic (al...

Journal: :Theoretical population biology 2010
Michael A Fishman Lilach Hadany

We formulate and analyze a multi-generation population dynamics model for pollinators' mutualism with plants. The centerpiece of our model is an analytical expression for population-level plant-pollinator interactions extrapolated from a model of individual-level flowers and bees interactions. We also show that this analytical expression can be productively approximated by the Beddington-DeAnge...

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