Results 61 to 70 of about 856 (156)

A Fractional‐Order Peer Influence Mathematical Model

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
In this article, a fractional‐order mathematical model is used to simulate peer influence using the Liouville–Caputo framework. Our model was made up of four states, which describe friends, negatively behaved friends, parental guidance, and positively behaved friends.
Patience Pokuaa Gambrah   +5 more
wiley   +1 more source

Solutions to Lyapunov stability problems: nonlinear systems with continuous motions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 3, Page 587-596, 1994., 1992
The necessary and sufficient conditions for accurate construction of a Lyapunov function and the necessary and sufficient conditions for a set to be the asymptotic stability domain are algorithmically solved for a nonlinear dynamical system with continuous motions. The conditions are established by utilizing properties of o‐uniquely bounded sets, which
Ljubomir T. Grujić
wiley   +1 more source

Bifurcation and chaos in a discrete predator-prey system of Leslie type with Michaelis-Menten prey harvesting

open access: yesOpen Mathematics, 2022
In this paper, a discrete Leslie-Gower predator-prey system with Michaelis-Menten type harvesting is studied. Conditions on the existence and stability of fixed points are obtained.
Chen Jialin   +3 more
doaj   +1 more source

Stability analysis in terms of two measures for dynamic systems on time scales

open access: yesInternational Journal of Stochastic Analysis, Volume 6, Issue 4, Page 325-344, 1993., 1993
Using the theory of Lyapunov′s second method developed earlier for time scales, we extend our stability results to two measures which give rise to unification of several stability concepts in a single set up.
Billûr Kaymakçalan
wiley   +1 more source

Effect of population migration and punctuated lockdown on the spread of infectious diseases

open access: yesNonautonomous Dynamical Systems, 2021
One of the critical measures to control infectious diseases is a lockdown. Once past the lockdown stage in many parts of the world, the crucial question now concerns the effects of relaxing the lockdown and finding the best ways to implement further ...
Kiran Ravi   +3 more
doaj   +1 more source

Theoretical analysis and computational modeling of nonlinear fractional-order victim-two predators model

open access: yesResults in Physics, 2022
The victim-predator model has been investigated in several papers in the literature since it is considered one of the very important models. The relation between predator and victim is an important aspect of ecology. The principal object of this research
M. Higazy   +4 more
doaj   +1 more source

Boundedness and asymptotic stability in the large of solutions of an ordinary differential system y′ = f(t, y, y′)

open access: yesInternational Journal of Stochastic Analysis, Volume 5, Issue 3, Page 261-274, 1992., 1991
Differential equations of the form y′ = f(t, y, y′), where f is not necessarily linear in its arguments, represent certain physical phenomena and solutions have been known for quite some time. The well known Clairut′s and Chrystal′s equations fall into this category.
M. Venkatesulu, P. D. N. Srinivasu
wiley   +1 more source

A temperature-dependent mathematical model of malaria transmission with stage-structured mosquito population dynamics

open access: yesNonautonomous Dynamical Systems, 2021
In this paper, we formulate a temperature-dependent model for malaria transmission dynamics which includes immature stages of mosquitoes. The model is constructed by using ordinary differential equations with some parameters which are periodic functions.
Traoré Bakary   +3 more
doaj   +1 more source

STABILITY OF NEURAL NETWORKS WITH RANDOM IMPULSES

open access: yesDynamic systems and applications, 2018
One of the main properties of solutions of neural networks is stability and often the direct Lyapunov method is used to study stability properties. We consider the Hopfield’s graded response neural network in the case when the neurons are subject to a ...
S. Hristova, P. Kopanov
semanticscholar   +1 more source

Mathematical modeling of Zika disease in pregnant women and newborns with microcephaly in Brazil

open access: yes, 2017
We propose a new mathematical model for the spread of Zika virus. Special attention is paid to the transmission of microcephaly. Numerical simulations show the accuracy of the model with respect to the Zika outbreak occurred in Brazil.Comment: This is a ...
Area, Ivan   +4 more
core   +1 more source

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