Results 11 to 20 of about 166,810 (242)

Periodic orbits of period 3 in the disc [PDF]

open access: yesNonlinearity, 1994
Let f be an orientation preserving homeomorphism of the disc D2 which possesses a periodic point of period 3. Then either f is isotopic, relative the periodic orbit, to a homeomorphism g which is conjugate to a rotation by 2 pi /3 or 4 pi /3, or f has a ...
B Kolev   +16 more
core   +6 more sources

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

Periodic Orbits in Polygonal Billiards [PDF]

open access: yesPramana, 1996
We review some properties of periodic orbit families in polygonal billiards and discuss in particular a sum rule that they obey. In addition, we provide algorithms to determine periodic orbit families and present numerical results that shed new light on ...
A Selberg   +19 more
core   +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

The Existence of Periodic Orbits on the Sphere [PDF]

open access: bronzeTokyo Journal of Mathematics, 1984
Besides the so-called Seifert conjecture, \textit{H. Seifert} in fact proved in his paper [see Math. Z. 51, 197-216 (1948; Zbl 0030.22103)] the existence of a periodic orbit on \(S^{2n-1}\) for a class of Lagrangian systems with n degrees of freedom, and proposed a problem for the existence of \(n\) periodic orbits on \(S^{2n-1}\) for the same class ...
Kiyoshi Hayashi
openalex   +5 more sources

On the continuation of periodic orbits [PDF]

open access: yesMethods and Applications of Analysis, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohamed Ben Haj Rhouma, Carmen Chicone
openaire   +2 more sources

Families of Periodic Delay Orbits

open access: yesJournal of Differential Equations, 2023
21 pages, 11 ...
Peter Albers   +2 more
openaire   +3 more sources

Reversible Relative Periodic Orbits [PDF]

open access: yesJournal of Differential Equations, 2002
The aim of this paper is to extend recently obtained results [\textit{B. Sandstede}, \textit{A. Scheel} and \textit{C. Wulff}, J. Nonlinear Sci. 9, 349--378 (1999; Zbl 0951.35014); \textit{C. Wulff}, \textit{J. S. W. Lamb} and \textit{I. Melbourne}, Ergodic Theory Dyn. Syst.
Lamb, JSW, Wulff, C
openaire   +4 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

Codimension 3 bifurcation from orbit-flip homoclinic orbit of weak type

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
This article is devoted to the research of a new codimension 3 homoclinic orbit bifurcation, which is the orbit-flip of weak type. Such kind of homoclinic orbit is a degenerate case of the orbit-flip homoclinic orbit.
Qiuying Lu, Guifeng Deng, Hua Luo
doaj   +1 more source

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