Results 61 to 70 of about 308 (160)

Dynamics for a discrete competition and cooperation model of two enterprises with multiple delays and feedback controls

open access: yesOpen Mathematics, 2017
This paper is concerned with a competition and cooperation model of two enterprises with multiple delays and feedback controls. With the aid of the difference inequality theory, we have obtained some sufficient conditions which guarantee the permanence ...
Lu Lin, Lian Yi, Li Chaoling
doaj   +1 more source

Testing interaction in some predator–prey populations

open access: yes
Correlated Ornstein–Uhlenbeck process, Ergodic and stationary process, Gaussian process, Wiener process, Uniformly most powerful test, Interaction parameter, Lotka–Volterra ODE, 62M10, 62F03, 92D25,
Sévérien Nkurunziza
core   +1 more source

Bayesian Estimation for Quantification by Real-time Polymerase Chain Reaction Under a Branching Process Model of the DNA Molecules Amplification Process

open access: yes, 2007
The aim of Quantitative Polymerase Chain Reaction is to determine the initial amount X0 of specific nucleic acids from an observed trajectory of the amplification process, the amplification being achieved through successive replication cycles.
Nadia Lalam   +5 more
core   +1 more source

Coexistence for a kind of stochastic three-species competitive models

open access: yesOpen Mathematics, 2019
The coexistence of species sustains the ecological balance in nature. This paper focuses on sufficient conditions for the coexistence of a three-species stochastic competitive model, where the model has non-linear diffusion parts.
Huang Nantian   +3 more
doaj   +1 more source

Complex dynamics of a nonlinear discrete predator-prey system with Allee effect

open access: yesOpen Mathematics
The transition between strong and weak Allee effects in prey provides a simple regime shift in ecology. In this article, we study a discrete predator-prey system with Holling type II functional response and Allee effect. First, the number of fixed points
Wang Jing, Lei Ceyu
doaj   +1 more source

Almost periodic solution of a discrete competitive system with delays and feedback controls

open access: yesOpen Mathematics, 2019
A discrete nonlinear almost periodic multispecies competitive system with delays and feedback controls is proposed and investigated. We obtain sufficient conditions to ensure the permanence of the system.
Xue Yalong, Xie Xiangdong, Lin Qifa
doaj   +1 more source

Dynamics of two-species delayed competitive stage-structured model described by differential-difference equations

open access: yesOpen Mathematics, 2019
Overf the last few years, by utilizing Mawhin’s continuation theorem of coincidence degree theory and Lyapunov functional, many scholars have been concerned with the global asymptotical stability of positive periodic solutions for the non-linear ...
Han Sufang   +4 more
doaj   +1 more source

Em Estimation of the Offspring Distribution in Mutitype Branching Processes - a Model in Cell Kinetics [PDF]

open access: yes, 2011
2000 Mathematics Subject Classification: 60J80, 60J85, 62P10, 92D25.Multitype branching processes (MTBP) have been proven to be very useful models in cell kinetics.
Daskalova, Nina
core  

Estimating the Effect of Economic Crisis with Crump-Mode-Jagers Branching Process [PDF]

open access: yes, 2015
[Trayanov Plamen; Траянов Пламен]; [Slavtchova-Bojkova Maroussia; Славчова-Бойкова Маруся]The Crump-Mode-Jagers branching process is used to model the populations of Bulgaria, Greece, Ireland, Italy, Portugal and Spain, which were influenced greatly by ...
Trayanov, Plamen   +1 more
core  

Periodic traveling fronts for partially degenerate reaction-diffusion systems with bistable and time-periodic nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2019
This paper is concerned with the periodic traveling fronts for partially degenerate reaction-diffusion systems with bistable and time-periodic nonlinearity.
Wu Shi-Liang, Hsu Cheng-Hsiung
doaj   +1 more source

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