Results 21 to 30 of about 83,325 (264)

On three-manifolds dominated by circle bundles [PDF]

open access: yes, 2012
We determine which three-manifolds are dominated by products. The result is that a closed, oriented, connected three-manifold is dominated by a product if and only if it is finitely covered either by a product or by a connected sum of copies of the ...
A. Casson   +19 more
core   +1 more source

Center Manifold Theorem and Stability for Integral Equations with Infinite Delay

open access: yesFunkcialaj Ekvacioj, 2015
The present paper deals with autonomous integral equations with infinite delay via dynamical system approach. Existence, local exponential attractivity, and other properties of center manifold are established by means of the variation-of-constants formula in the phase space that is obtained in a previous paper \cite{mur}.
Matsunaga, Hideaki   +3 more
openaire   +3 more sources

The local integration of Leibniz algebras [PDF]

open access: yes, 2012
This article gives a local answer to the coquecigrue problem. Hereby we mean the problem, formulated by J-L. Loday in \cite{LodayEns}, is that of finding a generalization of the Lie's third theorem for Leibniz algebra.
Covez, Simon
core   +2 more sources

Analysis of SVEIL Model of Tuberculosis Disease Spread with Imperfect Vaccination

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika), 2023
This study proposes a SVEIL model of tuberculosis disease spread with imperfect vaccination. Susceptible individuals can receive imperfect vaccination, but over the time the vaccine efficacy will decrease.
Handika Lintang Saputra   +2 more
doaj   +1 more source

Dynamical Analysis of a Computer Virus Propagation Model with Delay and Infectivity in Latent Period

open access: yesDiscrete Dynamics in Nature and Society, 2016
A delayed SLB computer virus propagation model with infectivity in latent period is proposed in this paper. We establish sufficient conditions for local stability of the positive equilibrium and existence of Hopf bifurcation by analyzing distribution of ...
Zizhen Zhang, Dianjie Bi
doaj   +1 more source

Flip and Neimark-Sacker Bifurcations of a Discrete Time Predator-Pre Model

open access: yesIEEE Access, 2019
In this paper, we investigate the system undergoes flip and Neimark Sacker bifurcation in the interior of R+2 by using the center manifold theorem and bifurcation theory. The dynamics of this discrete time predator-pre model is investigated in the closed
Yong Li   +4 more
doaj   +1 more source

Partially hyperbolic diffeomorphisms with a trapping property [PDF]

open access: yes, 2015
We study partially hyperbolic diffeomorphisms satisfying a trapping property which makes them look as if they were Anosov at large scale. We show that, as expected, they share several properties with Anosov diffeomorphisms.
Potrie, Rafael
core   +1 more source

Smith theory, L2 cohomology, isometries of locally symmetric manifolds and moduli spaces of curves [PDF]

open access: yes, 2011
We investigate periodic diffeomorphisms of non-compact aspherical manifolds (and orbifolds) and describe a class of spaces that have no homotopically trivial periodic diffeomorphisms.
Avramidi, Grigori
core   +1 more source

Hopf Bifurcation Analysis on General Gause-Type Predator-Prey Models with Delay

open access: yesAbstract and Applied Analysis, 2012
A class of three-dimensional Gause-type predator-prey model with delay is considered. Firstly, a group of sufficient conditions for the existence of Hopf bifurcation is obtained via employing the polynomial theorem by analyzing the distribution of the ...
Shuang Guo, Weihua Jiang
doaj   +1 more source

Stability and Hopf Bifurcation Analysis of Coupled Optoelectronic Feedback Loops

open access: yesAbstract and Applied Analysis, 2013
The dynamics of a coupled optoelectronic feedback loops are investigated. Depending on the coupling parameters and the feedback strength, the system exhibits synchronized asymptotically stable equilibrium and Hopf bifurcation.
Gang Zhu, Junjie Wei
doaj   +1 more source

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