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121
Extinction and Persistence in Mean of a Novel Delay Impulsive Stochastic Infected Predator-Prey System with Jumps
Published 2017-01-01“…Furthermore, persistence in mean of the system is also investigated by using the theory of impulsive stochastic differential equations (ISDE) and delay differential equations (DDE). Finally, we carry out some simulations to verify our main results and explain the biological implications.…”
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122
Strong Convergence of a New Hybrid Iterative Scheme for Nonexpensive Mappings and Applications
Published 2022-01-01“…By using the Picard-Thakur hybrid iterative scheme, we can find the solution of delay differential equations and also prove some convergence results for nonexpansive mapping in a uniformly convex Banach space.…”
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123
Almost Sure Stability of Stochastic Neural Networks with Time Delays in the Leakage Terms
Published 2016-01-01“…By using the LaSalle invariant principle of stochastic delay differential equations, Itô’s formula, and stochastic analysis theory, some novel sufficient conditions are derived to guarantee the almost sure stability of the equilibrium point. …”
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124
Hopf-Bifurcation Analysis of Pneumococcal Pneumonia with Time Delays
Published 2019-01-01“…The stability theory of delay differential equations is used to analyze the model. The results show that the disease-free equilibrium is asymptotically stable if the control reproduction ratio R0 is less than unity and unstable otherwise. …”
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125
Z2×Z3 Equivariant Bifurcation in Coupled Two Neural Network Rings
Published 2014-01-01“…We discuss the spatiotemporal patterns of bifurcating periodic oscillations by using the symmetric bifurcation theory of delay differential equations combined with representation theory of Lie groups. …”
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126
A simple model of carcinogenic mutations with time delay and diffusion
Published 2013-03-01“…In the paper we consider a system of delay differential equations (DDEs) of Lotka-Volterra type with diffusion reflecting mutations from normal to malignant cells. …”
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127
Positivity of Fundamental Matrix and Exponential Stability of Delay Differential System
Published 2014-01-01“…Results on nonnegativity of the Cauchy matrix for system of delay differential equations xi′t+∑j=1npijtxjhijt=fit, i=1,…,n, which were based on nonpositivity of all diagonal elements, were presented in the previous works. …”
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128
Improving diversification by a hybrid bat-Nelder-Mead algorithm and DDE for rapid convergence to solve global optimization
Published 2024-12-01“…Delay differential equations and algorithms hold a crucial position in the exploration of some biological systems and several models in real-world applications. …”
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129
Bifurcation and controller design in a 3D delayed predator-prey model
Published 2024-11-01“…This paper determines the parameter conditions for system stability and the occurrence of bifurcations by employing bifurcation theory and the stability theory of delayed differential equations. Using two control strategies, namely the mixed controller and the extended delay feedback controller, this paper effectively adjusts the stability domain of the delayed predator-prey systems and controls the time of bifurcation onset. …”
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130
A Fuzzy Delay Approach for HIV Dynamics Using a Cellular Automaton
Published 2015-01-01“…The objective of this research is to study the evolution of CD4+ T lymphocytes infected with HIV in HIV-seropositive individuals under antiretroviral treatment utilizing a mathematical model consisting of a system of delay-differential equations. The infection rate of CD4+ T lymphocytes is a time-dependent parameter with delay. …”
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131
Artificial neural networks for stability analysis and simulation of delayed rabies spread models
Published 2024-11-01“…This study addressed the complexity of rabies spread by integrating two critical delay effects—vaccination efficacy and incubation duration—into a delay differential equations model, capturing more realistic infection patterns between dogs and humans. …”
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132
Reconstruction of self-oscillating systems with delay time modulation
Published 2025-01-01“…The object of study is self-oscillating systems described by delay-differential equations, in which the delay time is modulated by an external periodic signal. …”
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133
The Effect of Delay Techniques on a Lassa Fever Epidemic Model
Published 2024-01-01“…By introducing a delay parameter and decay exponential term into the existing model in the literature, we got the system of highly nonlinear delay differential equations (DDEs). The fundamental properties such as positivity, boundedness, existence, and uniqueness are verified for the said model. …”
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134
ON THE EQUIVALENCE OF DELAYED ARGUMENTS AND TRANSFER EQUATIONS FOR MODELING DYNAMIC SYSTEMS
Published 2018-03-01“…In this paper, we considered a general form of a system of first-order delayed differential equations, traditionally used for describing the function of biological systems of different hierarchical levels. …”
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135
Bifurcation analysis of multistability and hysteresis in a model of HIV infection
Published 2023-12-01“…To this end, original computational methods of bifurcation analysis of mathematical models formulated with systems of ordinary differential equations and delay differential equations are used. The macrophage activation rate constant is considered as a bifurcation parameter. …”
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