Results 61 to 70 of about 5,743 (240)

Exploring the Influence of Oblateness on Asymptotic Orbits in the Hill Three-Body Problem

open access: yesAppliedMath
We examine the modified Hill three-body problem by incorporating the oblateness of the primary body and focus on its asymptotic orbits. Specifically, we analyze and characterize homoclinic and heteroclinic connections associated with the collinear ...
Vassilis S. Kalantonis
doaj   +1 more source

Simple heteroclinic cycles in R^4

open access: yes, 2015
In generic dynamical systems heteroclinic cycles are invariant sets of codimension at least one, but they can be structurally stable in systems which are equivariant under the action of a symmetry group, due to the existence of flow-invariant subspaces ...
Chossat, Pascal, Podvigina, Olga
core   +3 more sources

Heterogeneously Structured Compartmental Models of Epidemiological Systems: From Individual‐Level Processes to Population‐Scale Dynamics

open access: yesStudies in Applied Mathematics, Volume 155, Issue 2, August 2025.
ABSTRACT We develop a general modeling framework for compartmental epidemiological systems structured by continuous variables which are linked to the levels of expression of compartment‐specific traits. We start by formulating an individual‐based model that describes the dynamics of single individuals in terms of stochastic processes. Then, we formally
Emanuele Bernardi   +3 more
wiley   +1 more source

Creation of single-wing Lorenz-like attractors via a ten-ninths-degree term

open access: yesOpen Physics
In light of the subtle connection between the strange attractors and the degree of dynamical systems, in this study, we propose a new simple asymmetric Lorenz-like system and report the finding of single-wing Lorenz-like attractors, which can also be ...
Pan Jun   +3 more
doaj   +1 more source

Fat handles and phase portraits of Non Singular Morse-Smale flows on S^3 with unknotted saddle orbits [PDF]

open access: yes, 2014
In this paper we build Non-singular Morse-Smale flows on S^3 with unknotted and unlinked saddle orbits by identifying fat round handles along their boundaries. This way of building the flows enables to get their phase portraits.
Campos, B., Vindel, P.
core   +2 more sources

Stability of N‐front and N‐back solutions in the Barkley model

open access: yesGAMM-Mitteilungen, Volume 48, Issue 1, March 2025.
ABSTRACT In this article, we establish for an intermediate Reynolds number domain the stability of N$$ N $$‐front and N$$ N $$‐back solutions for each N>1$$ N>1 $$ corresponding to traveling waves, in an experimentally validated model for the transition to turbulence in pipe flow proposed in [Barkley et al., Nature 526(7574):550‐553, 2015]. We base our
Christian Kuehn, Pascal Sedlmeier
wiley   +1 more source

On homoclinic and heteroclinic orbits for Hamiltonian systems

open access: yesDifferential and Integral Equations, 1997
The authors give sufficient conditions for the existence of homoclinic and heteroclinic orbits of Hamiltonian systems \[ u''-L(t)u+V_u(t,u)=0,\tag{*} \] where \(L\) is a symmetric positive definite \(n\times n\) matrix and the potential \(V\) is supposed to be superquadratic in \(u\).
Korman, Philip, Lazer, Alan C., Li, Yi
openaire   +3 more sources

Exponentially small heteroclinic breakdown in the generic Hopf-zero singularity

open access: yes, 2012
In this paper we prove the breakdown of an heteroclinic connection in the analytic versal unfoldings of the generic Hopf-Zero singularity in an open set of the parameter space.
F Takens   +10 more
core   +1 more source

Heteroclinic Connections between Periodic Orbits in Planar Restricted Circular Three Body Problem - Part II [PDF]

open access: yes, 2004
We present a method for proving the existence of symmetric periodic, heteroclinic or homoclinic orbits in dynamical systems with the reversing symmetry.
Wilczak, D., Zgliczynski, P.
core   +1 more source

A Multiparameter Singular Perturbation Analysis of the Robertson Model

open access: yesStudies in Applied Mathematics, Volume 154, Issue 2, February 2025.
ABSTRACT The Robertson model describing a chemical reaction involving three reactants is one of the classical examples of stiffness in ODEs. The stiffness is caused by the occurrence of three reaction rates k1,k2,${k}_{1},{k}_{2},$ and k3,${k}_{3},$ with largely differing orders of magnitude, acting as parameters.
Lukas Baumgartner, Peter Szmolyan
wiley   +1 more source

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