Results 21 to 30 of about 2,515,351 (324)

Global stability for an SEIR epidemiological model with varying infectivity and infinite delay

open access: hybridMathematical Biosciences and Engineering, 2009
A recent paper (Math. Biosci. and Eng. (2008) 5:389-402)presented an SEIR model using an infinite delay to account for varyinginfectivity. The analysis in that paper did not resolve the globaldynamics for R0 >1.
C. Connell McCluskey
doaj   +2 more sources

Multivalued evolution equations with infinite delay in Fréchet spaces

open access: diamondElectronic Journal of Qualitative Theory of Differential Equations, 2008
In this paper, sufficient conditions are given to investigate the existence of mild solutions on a semi-infinite interval for two classes of first order semilinear functional and neutral functional differential evolution inclusions with infinite delay ...
Selma BAGHLI-BENDIMERAD   +1 more
doaj   +2 more sources

The permanence and periodic solution of a competitive system with infinite delay, feedback control, and Allee effect [PDF]

open access: goldAdvances in Difference Equations, 2018
This paper is devoted to study the permanence and periodic solution of a competitive system with infinite delay, feedback control, and the Allee effect.
Lei Shi   +4 more
doaj   +2 more sources

C^k invariant manifolds for infinite delay

open access: yesElectronic Journal of Differential Equations, 2019
For a non-autonomous delay difference equation with infinite delay, we construct smooth stable and unstable invariant manifolds for any sufficiently small perturbation of an exponential dichotomy.
Luis Barreira, Claudia Valls
doaj   +2 more sources

Solvability of Nonautonomous Fractional Integrodifferential Equations with Infinite Delay

open access: goldAdvances in Difference Equations, 2011
We study the existence and uniqueness of mild solution of a class of nonlinear nonautonomous fractional integrodifferential equations with infinite delay in a Banach space .
Li Fang
doaj   +3 more sources

Permanence of predator-prey system with infinite delay

open access: greenElectronic Journal of Differential Equations, 2004
In this paper we consider a predator-prey system with periodic coefficients and infinite delay, in which the prey has a history that takes them through two stages, immature and mature.
Jingan Cui, Yonghong Sun
doaj   +1 more source

Approximate Controllability of Ψ-Hilfer Fractional Neutral Differential Equation with Infinite Delay

open access: yesFractal and Fractional, 2023
In this paper, we explain the approximate controllability of Ψ-Hilfer fractional neutral differential equations with infinite delay. The outcome is demonstrated using the infinitesimal operator, fractional calculus, semigroup theory, and the ...
C. S. V. Varun Bose   +4 more
semanticscholar   +1 more source

Solving a System of Differential Equations with Infinite Delay by Using Tripled Fixed Point Techniques on Graphs

open access: yesSymmetry, 2022
In this manuscript, some similar tripled fixed point results under certain restrictions on a b−metric space endowed with graphs are established. Furthermore, an example is provided to support our results.
H. Hammad, M. Zayed
semanticscholar   +1 more source

New Stability Results for Abstract Fractional Differential Equations with Delay and Non-Instantaneous Impulses

open access: yesMathematics, 2023
This research delves into the field of fractional differential equations with both non-instantaneous impulses and delay within the framework of Banach spaces.
Abdellatif Benchaib   +3 more
doaj   +1 more source

Mean square exponential stability of stochastic function differential equations in the G-framework

open access: yesOpen Mathematics, 2023
This research focuses on the stochastic functional differential equations driven by G-Brownian motion (G-SFDEs) with infinite delay. It is proved that the trivial solution of a G-SFDE with infinite delay is exponentially stable in mean square. An example
Li Guangjie, Hu Zhipei
doaj   +1 more source

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