Results 11 to 20 of about 107,633 (324)

Periodic Orbits and Warps [PDF]

open access: bronzeSymposium - International Astronomical Union, 1983
Orbit calculations were done in a rotating triaxial system with a density distribution in accordance with recent observations of spiral galaxies. A search was made for simple closed orbits which are tilted with respect to the plane of the galaxy. A family of stable prograde tilted orbits was found which can explain warps as stationary phenomena.
W. A. Mulder
openalex   +4 more sources

On Langmuir’s periodic orbit [PDF]

open access: yesArchiv der Mathematik, 2022
Niels Bohr successfully predicted in 1913 the energy levels for the hydrogen atom by applying certain quantization rules to classically obtained periodic orbits. Many physicists tried to apply similar methods to other atoms. In his well-known 1921 paper, I.~Langmuir established numerically the existence of a periodic orbit in the helium atom considered
K. Cieliebak   +2 more
openaire   +2 more sources

Orbital Magnetization in Periodic Insulators [PDF]

open access: yesPhysical Review Letters, 2005
submitted to PRL; signs corrected in Eqs. (11), (12), (19), and (20)
T. THONHAUSER   +3 more
openaire   +5 more sources

Planar resonant periodic orbits in Kuiper belt dynamics [PDF]

open access: yes, 2005
In the framework of the planar restricted three body problem we study a considerable number of resonances associated to the Kuiper Belt dynamics and located between 30 and 48 a.u.
Beaugé   +24 more
core   +1 more source

Periodic Orbit Theory of Diffraction [PDF]

open access: yesPhysical Review Letters, 1994
An extension of the Gutzwiller trace formula is given that includes diffraction effects due to hard wall scatterers or other singularities. The new trace formula involves periodic orbits which have arcs on the surface of singularity and which correspond to creping waves. A new family of resonances in the two disk scattering system can be well described
Vattay, G., Wirzba, A., Rosenqvist, P.
openaire   +5 more sources

Reversible Relative Periodic Orbits [PDF]

open access: yesJournal of Differential Equations, 2002
AbstractWe study the bundle structure near reversible relative periodic orbits in reversible equivariant systems. In particular we show that the vector field on the bundle forms a skew product system, by which the study of bifurcation from reversible relative periodic solutions reduces to the analysis of bifurcation from reversible discrete rotating ...
Lamb, JSW, Wulff, C
openaire   +4 more sources

A Memristor-Based Colpitts Oscillator Circuit

open access: yesMathematics, 2022
This paper investigates a simple memristor emulator consisting of a diode bridge and a capacitor. It exhibits pinched hysteresis loops, and what is more striking is the higher frequency, as it operates up to greater than 5 MHz.
Ling Zhou   +3 more
doaj   +1 more source

New periodic orbits in the solar sail three-body problem [PDF]

open access: yes, 2011
We identify displaced periodic orbits in the circular restricted three-body problem, wher the third (small) body is a solar sail. In particular, we consider solar sail orbits in the earth-sun system which are high above the exliptic plane.
C.R. McInnes   +7 more
core   +1 more source

On the distribution of periodic orbits

open access: yesDiscrete & Continuous Dynamical Systems - A, 2010
Let $f:M\to M$ be a $C^{1+ }$-map on a smooth Riemannian manifold $M$ and let $ \subset M$ be a compact $f$-invariant locally maximal set. In this paper we obtain several results concerning the distribution of the periodic orbits of $f| $. These results are non-invertible and, in particular, non-uniformly hyperbolic versions of well-known results by
Christian Wolf, Katrin Gelfert
openaire   +3 more sources

Measuring scars of periodic orbits [PDF]

open access: yesPhysical Review E, 1999
The phenomenon of periodic orbit scarring of eigenstates of classically chaotic systems is attracting increasing attention. Scarring is one of the most important "corrections" to the ideal random eigenstates suggested by random matrix theory. This paper discusses measures of scars and in so doing also tries to clarify the concepts and effects of ...
Lev Kaplan, Eric J. Heller
openaire   +3 more sources

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