Results 21 to 30 of about 11,209 (164)

Piecewise expanding maps: combinatorics, dynamics and representation of rational numbers

open access: yesESAIM: Proceedings and Surveys, 2014
We establish combinatorial properties of the dynamics of piecewise increasing, continuous, expanding maps of the interval such as description of periodic and pre-periodic points, primitiveness of truncated itineraries and length of ...
Serpa Cristina, Buescu Jorge
doaj   +1 more source

Periodic and homoclinic orbits in a toy climate model [PDF]

open access: yesNonlinear Processes in Geophysics, 1994
A two dimensional system of autonomous nonlinear ordinary differential equations models glacier growth and temperature changes on an idealized planet.
M. Toner, A. D. Kirwan, Jr.
doaj  

Bifurcations of Nontwisted Heteroclinic Loop with Resonant Eigenvalues

open access: yesThe Scientific World Journal, 2014
By using the foundational solutions of the linear variational equation of the unperturbed system along the heteroclinic orbits to establish the local coordinate systems in the small tubular neighborhoods of the heteroclinic orbits, we study the ...
Yinlai Jin   +5 more
doaj   +1 more source

A Lycaon pictus impulsive state feedback control model with Allee effect and continuous time delay

open access: yesAdvances in Difference Equations, 2018
Allee effect (i.e. sparse effect) is active when the population density is small. Our purpose is to study such an effect of this phenomenon on population dynamics.
Yaning Li, Huidong Cheng, Yanhui Wang
doaj   +1 more source

Unstable periodic motion in turbulent flows [PDF]

open access: yesNonlinear Processes in Geophysics, 2006
Recently found unstable time-periodic solutions to the incompressible Navier-Stokes equation are reviewed to discuss their relevance to plane Couette turbulence and isotropic turbulence.
G. Kawahara, S. Kida, L. van Veen
doaj  

Characterizing receiver clock behaviors onboard Low Earth Orbiters: A case study of GRACE satellites

open access: yesGeodesy and Geodynamics, 2019
Accurate estimation of clocks, for example for the Gravity Recovery And Climate Experiment (GRACE) twin-satellites, is a critical part of precise orbit determination (POD) that ensures temporal gravity inversion. Characterizing the periodic variations of
Tzu-Pang Tseng, C.K. Shum, Ting-Yi Yang
doaj   +1 more source

Periodic Patterns in Orbits of Certain Linear Cellular Automata [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2001
We discuss certain linear cellular automata whose cells take values in a finite field. We investigate the periodic behavior of the verticals of an orbit of the cellular automaton and establish that there exists, depending on the characteristic of the ...
André Barbé, Fritz Haeseler
doaj   +1 more source

Poincaré Map for Discontinuous Fractional Differential Equations

open access: yesMathematics, 2022
We work with a perturbed fractional differential equation with discontinuous right-hand sides where a discontinuity function crosses a discontinuity boundary transversally.
Ivana Eliašová, Michal Fečkan
doaj   +1 more source

Precessing and periodic motions around a black-bounce/traversable wormhole

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We investigate precessing and periodic geodesic motions of timelike particles around a black-bounce/traversable wormhole. After obtaining its semi-classic and relativistic periastron advance, we find a preliminary bound on the scale length of such a ...
Tian-Yi Zhou, Yi Xie
doaj   +1 more source

Period-Multiplying Bifurcations in the Gravitational Field of Asteroids

open access: yesAerospace
Periodic orbit families around asteroids serve as potential trajectories for space probes, mining facilities, and deep space stations. Bifurcations of these families provide additional candidate orbits for efficient trajectory design around asteroids ...
P. Rishi Krishna, Joel George Manathara
doaj   +1 more source

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