Results 51 to 60 of about 334 (139)

Generalized practical stability results by perturbing Lyapunov functions

open access: yesInternational Journal of Stochastic Analysis, Volume 9, Issue 1, Page 69-75, 1996., 1995
It is known that practical stability is neither stronger nor weaker than Lyapunov stability. In this paper we combine perturbing Lyapunov technique with stability in terms of two measures to obtain nonuniform practical stability results under weaker assumptions. We also use comparison methods to obtain these results.
Donna Stutson, A. S. Vatsala
wiley   +1 more source

Within-host models of dengue virus transmission with immune response

open access: yesComputational and Mathematical Biophysics, 2023
Dengue fever is an infectious viral fever. The complex behavior of the virus within the body can be explained through mathematical models to understand the virus’s dynamics.
Muthu Poosan, Modak Bikash
doaj   +1 more source

Stability of nonlinear systems under constantly acting perturbations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 18, Issue 2, Page 273-278, 1995., 1995
In this paper, we investigate total stability, attractivity and uniform stability in terms of two measures of nonlinear differential systems under constant perturbations. Some sufficient conditions are obtained using Lyapunov′s direct method. An example is also worked out.
Xinzhi Liu, S. Sivasundaram
wiley   +1 more source

Optimal Control for a COVID-19 Model Accounting for Symptomatic and Asymptomatic

open access: yesComputational and Mathematical Biophysics, 2020
Building on an SEIR-type model of COVID-19 where the infecteds are further divided into symptomatic and asymptomatic, a system incorporating the various possible interventions is formulated.
Macalisang Jead M.   +3 more
doaj   +1 more source

Global analysis and control for a vector-borne epidemic model with multi-edge infection on complex networks

open access: yesOpen Mathematics, 2023
In this study, a vector-borne epidemic model with multi-edge infection on complex networks is built. Using the method of next-generation matrix, the basic reproduction number R0{R}_{0} is calculated, and if R01{R}_{0}\gt 1, there exists a unique endemic ...
Ding Yanlin, Jiao Jianjun
doaj   +1 more source

Razumikhin′s method in the qualitative theory of processes with delay

open access: yesInternational Journal of Stochastic Analysis, Volume 8, Issue 3, Page 233-247, 1995., 1995
B.S. Razumikhin′s concept in the qualitative theory of systems delay is clarified and discussed. Various ways of improvements of stability conditions are considered. The author shows that the guiding role of Lyapunov functions and demonstrates Razumikhin′s method as a practical case of continuous version of the mathematical induction.
Anatoly D. Myshkis
wiley   +1 more source

Dynamical analysis of a Lotka Volterra commensalism model with additive Allee effect

open access: yesOpen Mathematics, 2022
We propose and analyze a Lotka-Volterra commensal model with an additive Allee effect in this article. First, we study the existence and local stability of possible equilibria.
He Xiaqing   +3 more
doaj   +1 more source

Qualitative Analysis of Nonconvolution Volterra Summation Equations

open access: yesInternational Journal of Differential Equations, 2019
This paper is first in a series of papers in which we consider the vector nonconvolution Volterra summation equation x(t) = a(t)− t−1 ∑ s=0 C(t, s)x(s), t ∈ Z where x and a are k-vectors, k ≥ 1, while C is an k × k matrix.
Y. Raffoul
semanticscholar   +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

Analysis of a hyperbolic geometric model for visual texture perception

open access: yesJournal of Mathematical Neuroscience, 2011
We study the neural field equations introduced by Chossat and Faugeras to model the representation and the processing of image edges and textures in the hypercolumns of the cortical area V1.
Grégory Faye, P. Chossat, O. Faugeras
semanticscholar   +1 more source

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