Results 21 to 30 of about 4,749,604 (246)

Center manifolds for smooth invariant manifolds [PDF]

open access: yesTransactions of the American Mathematical Society, 2000
We study dynamics of flows generated by smooth vector fields in R
Chow, Shui-Nee, Liu, Weishi, Yi, Yingfei
openaire   +2 more sources

Hopf-zero bifurcation of the ring unidirectionally coupled Toda oscillators with delay

open access: yesNonlinear Analysis, 2021
In this paper, the Hopf-zero bifurcation of the ring unidirectionally coupled Toda oscillators with delay was explored. First, the conditions of the occurrence of Hopf-zero bifurcation were obtained by analyzing the distribution of eigenvalues in ...
Rina Su, Chunrui Zhang
doaj   +1 more source

Methodology for automatic recovering of 3D partitions from unstitched faces of non-manifold CAD models [PDF]

open access: yes, 2013
Data exchanges between different software are currently used in industry to speed up the preparation of digital prototypes for Finite Element Analysis (FEA).
PERNOT, Jean-Philippe   +1 more
core   +1 more source

Closed aspherical manifolds with center [PDF]

open access: yesJournal of Topology, 2013
We show that in all dimensions >7 there are closed aspherical manifolds whose fundamental groups have nontrivial center but do not possess any topological circle actions. This disproves a conjectured converse (proposed by Conner and Raymond) to a classical theorem of Borel.
Cappell, Sylvain   +2 more
openaire   +3 more sources

Asymptotic integration of functional differential systems with oscillatory decreasing coefficients: a center manifold approach

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper we study the asymptotic integration problem in the neighborhood of infinity for a certain class of linear functional differential systems. We propose a method for construction of the asymptotics of solutions in the critical case.
Pavel Nesterov
doaj   +1 more source

Local and global asymptotic behavior of malaria-filariasis coinfections in compliant and noncompliant susceptible pregnant women to antenatal medical program in the tropics [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2019
In this paper, a mathematical nonlinear model system of equations describing the dynamics of the co-interaction between malaria and filariasis epidemic affecting the susceptible host population of pregnant women in the tropics is formulated.
Oluwatayo M. Ogunmiloro
doaj   +1 more source

MATHEMATICAL MODEL FOR MICRO-IRRIGATION DESING FOR CENTER PIVOT CORNERS [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2009
A mathematical model was developed to analyzing hydraulic characteristics in a micro-irrigation system design micro-irrigation system for center pivot corners.
A.A. El-Shafei   +2 more
doaj   +1 more source

Center Manifolds of Coupled Cell Networks [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2017
Dynamical systems with a network structure can display anomalous bifurcations as a generic phenomenon. As an explanation for this it has been noted that homogeneous networks can be realized as quotient networks of so-called fundamental networks. The class of admissible vector fields for these fundamental networks is equal to the class of equivariant ...
Eddie Nijholt   +2 more
openaire   +4 more sources

Center Manifolds for Delay Equations

open access: yesFunkcialaj Ekvacioj, 2020
The authors are concerned with the following delay differential equation \[ v^{\prime}=L(t)v_t+g(t,v_t),\tag{E} \] where \(L(t):C([-r,0];\mathbb{R}^n)\to \mathbb{R}^n\), \(t\in \mathbb{R}\), are bounded linear operators (here \(r\) is a positive number) satisfying \(\sup_{t\in \mathbb{R}}\int_t^{t+1}\Vert L(s) \Vert ds < \infty\), and \(g=g(t,v ...
Barreira, Luis, Valls, Claudia
openaire   +2 more sources

Bifurcation Analysis in a Delay Differential Equations, which Confers a Strong Allee Effect in Escherichia Coli

open access: yesMathematical Modelling and Analysis, 2015
The paper addresses the bifurcations for a delay differential model with parameters which confers a strong Allee effect in Escherichia coli. Stability and local Hopf bifurcations are analyzed when the delay τ or σ as parameter.
Qiubao Wang, Ruilan Tian
doaj   +1 more source

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