Results 41 to 50 of about 166,810 (242)
A Lycaon pictus impulsive state feedback control model with Allee effect and continuous time delay
Advances 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
, 2007 We study which and how a periodic orbit in phase space links to both the largest Lyapunov exponent and the expectation values of macroscopic variables in a Hamiltonian system with many degrees of freedom.
Goto, Shin-itiro
core +1 more source
Periodic orbits in warped disks [PDF]
Astronomy & Astrophysics, 2001 It is often assumed that a warped galaxy can be modeled by a set of rings. This paper verifies numerically the validity of this assumption by the study of periodic orbits populating a heavy self-gravitating warped disk. The phase space structure of a warped model reveals that the circular periodic orbits of a flat disk are transformed in quasi annular ...
Yves Revaz, Daniel Pfenniger
openaire +4 more sources
Characterizing receiver clock behaviors onboard Low Earth Orbiters: A case study of GRACE satellites
Geodesy 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
Decimation and Harmonic Inversion of Periodic Orbit Signals
, 1999 We present and compare three generically applicable signal processing methods for periodic orbit quantization via harmonic inversion of semiclassical recurrence functions.
Berry M V +21 more
core +4 more sources
Spectra of regular quantum graphs [PDF]
, 2001 We consider a class of simple quasi one-dimensional classically non-integrable systems which capture the essence of the periodic orbit structure of general hyperbolic nonintegrable dynamical systems.
A. Messiah +28 more
core +2 more sources
Unstable periodic motion in turbulent flows [PDF]
Nonlinear 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
Precessing and periodic motions around a black-bounce/traversable wormhole
European 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
Double Grazing Periodic Motions and Bifurcations in a Vibroimpact System with Bilateral Stops
Abstract and Applied Analysis, 2014 The double grazing periodic motions and bifurcations are investigated for a two-degree-of-freedom vibroimpact system with symmetrical rigid stops in this paper.
Qunhong Li +3 more
doaj +1 more source