Results 81 to 90 of about 5,334 (147)

On the existence of chaotic circumferential waves in spinning disks

, 2007
We use a third-order perturbation theory and Melnikov's method to prove the existence of chaos in spinning circular disks subject to a lateral point load.
Arzhang Angoshtari, Melnikov V. K., Mir Abbas Jalali, Reddy J. N.   +3 more
core   +1 more source

Chaos Control, Codimension‐One and Codimension‐Two 1 : 2 Strong Resonance Bifurcation Analysis of a Predator‐Prey Model with Holling Types I and III Functional Responses

Complexity, Volume 2024, Issue 1, 2024.
We study the existence of fixed points, local stability analysis, bifurcation sets at fixed points, codimension‐one and codimension‐two bifurcation analysis, and chaos control in a predator‐prey model with Holling types I and III functional responses. It is proven that the model has a trivial equilibrium point for all involved parameters but interior ...
Abdul Qadeer Khan, Syeda Noor-ul-Huda Naqvi, Shaimaa A. A. Ahmed, Waleed A. I. El-Morsi, Carlos Aguilar-Ibanez   +4 more
wiley   +1 more source

Bianchi Cosmologies with Anisotropic Matter: Locally Rotationally Symmetric Models

, 2009
The dynamics of cosmological models with isotropic matter sources (perfect fluids) is extensively studied in the literature; in comparison, the dynamics of cosmological models with anisotropic matter sources is not.
Andréasson, Barrow, Belinskiǐ, Calogero, Calogero, Calogero, Calogero, Calogero, Coley, Collins, Collins, Ehlers, Fjällborg, Hawking, Heinzle, Heinzle, Heinzle, Horwood, J. Mark Heinzle, Kantowski, LeBlanc, Lin, Maartens, Maartens, MacCallum, Perko, Petrov, Rendall, Ringström, Saha, Saletan, Simone Calogero, Uggla, Wainwright, Wald   +34 more
core   +1 more source

Dynamics of a New Four-Thirds-Degree Sub-Quadratic Lorenz-like System

Axioms
Aiming to explore the subtle connection between the number of nonlinear terms in Lorenz-like systems and hidden attractors, this paper introduces a new simple sub-quadratic four-thirds-degree Lorenz-like system, where x˙=a(y−x), y˙=cx−x3z, z˙=−bz+x3y ...
Guiyao Ke, Jun Pan, Feiyu Hu, Haijun Wang   +3 more
doaj   +1 more source

Construction of entire solutions for semilinear parabolic equations

Electronic Journal of Differential Equations, 2008
Entire solutions of parabolic equations (those which are defined for all time) are typically rather rare. For example, the heat equation has exactly one entire solution - the trivial solution.
Michael Robinson
doaj  

Global portraits of inflation in nonsingular variables

European Physical Journal C: Particles and Fields
In the phase space perspective, scalar field slow roll inflation is described by a heteroclinic orbit from a saddle type fixed point to a final attractive point.
Laur Järv, Dmitri Kraiko
doaj   +1 more source

Some models for the description of the attitude dynamics [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 2014
The study of rotational dynamics is of seminal importance for the description of the motion of natural and artificial bodies. In this work with are mainly interested to the attitude of spacecraft, possibly including dissipative e↵ects, which must be ...
Marta Ceccaroni, Alessandra Celletti
doaj  

Saddle-center and periodic orbit: Dynamics near symmetric heteroclinic connection [PDF]

, 2021
L. M. Lerman, K. N. Trifonov
openalex   +1 more source

A Novel Lorenz-like Attractor and Stability and Equilibrium Analysis

Axioms
This paper introduces a novel 3D periodically forced extended Lorenz-like system and illustrates a single thick two-scroll attractor with potential unboundedness whose time series of the second state variable present some certain random characteristics ...
Jun Pan, Haijun Wang, Guiyao Ke, Feiyu Hu   +3 more
doaj   +1 more source

Limits of heteroclinic orbits in a competitive model with genetic variation [PDF]

, 1990
James F. Selgrade
openalex   +1 more source