Results 1 to 10 of about 210 (64)
Periodic solutions of a delayed predator-prey model with stage structure for predator [PDF]
Journal of Applied Mathematics, Volume 2004, Issue 3, Page 255-270, 2004., 2004 A periodic time-dependent Lotka-Volterra-type predator-prey model with stage structure for the predator and time delays due to negative feedback and gestation is investigated.
Chaplain, M. A J +2 more
core +4 more sources
On a class of differential-algebraic equations with infinite delay [PDF]
, 2011 We study the set of $T$-periodic solutions of a class of $T$-periodically perturbed Differential-Algebraic Equations, allowing the perturbation to contain a distributed and possibly infinite delay.
Bisconti, Luca, Spadini, Marco
core +16 more sources
Existence of positive periodic solutions for third-order differential equation with strong singularity [PDF]
Advances in Difference Equations, 2014 Zhibo Cheng
exaly +2 more sources
Open Mathematics, 2022 This study elucidates the sufficient conditions for the first-order nonlinear differential equations with periodic coefficients and time-varying delays to have positive periodic solutions.
Han Xiaoling, Lei Ceyu
doaj +1 more source
Nonautonomous Dynamical Systems, 2022 In this work, we study a class of abstract non-autonomous partial functional differential equations with infinite delay. Our main results concern the local existence of the mild solution which can blow up at the finite time.
Diop Mamadou Abdoul +2 more
doaj +1 more source
Modeling transmission dynamics of rabies in Nepal
Infectious Disease Modelling, 2021 Even though vaccines against rabies are available, rabies still remains a burden killing a significant number of humans as well as domestic and wild animals in many parts of the world, including Nepal.
Buddhi Pantha +3 more
doaj +1 more source
Periodic solutions to a class of distributed delay differential equations via variational methods
Advances in Nonlinear Analysis, 2023 In this article, we study the existence of periodic solutions to a class of distributed delay differential equations. We transform the search for periodic solutions with the special symmetry of a delay differential equation to the problem of finding ...
Xiao Huafeng, Guo Zhiming
doaj +1 more source
Recurrent epidemic waves in a delayed epidemic model with quarantine
Journal of Biological Dynamics, 2022 In this paper, we are concerned with an epidemic model with quarantine and distributed time delay. We define the basic reproduction number [Formula: see text] and show that if [Formula: see text], then the disease-free equilibrium is globally ...
Toshikazu Kuniya
doaj +1 more source
Existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales
Moroccan Journal of Pure and Applied Analysis, 2021 In this article we study the existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales. The main tool employed here is Schauder’s fixed point theorem.
Bouchelaghem Faycal +2 more
doaj +1 more source
Advances in Nonlinear Analysis, 2023 In this article, we develop a continuous periodic switching model depicting Wolbachia infection frequency dynamics in mosquito populations by releasing Wolbachia-infected mosquitoes, which is different from the discrete modeling efforts in the literature.
Shi Yantao, Zheng Bo
doaj +1 more source