Results 31 to 40 of about 6,276,609 (285)

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

CVs Around the Minimum Orbital Period

open access: yesActa Polytechnica CTU Proceedings, 2015
We discussed features of Cataclysmic Variables at the period minimum. In general, most of them must be WZ Sge-type objects. Main characteristics of the prototype star (WZ Sge) are discussed. A part of WZ Sge-type objects has evolved past the period limit
S. Zharikov, G. Tovmassian
doaj   +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

Orbital Index in Human Dry Skulls of East Indian Origin: A Cross-sectional Study [PDF]

open access: yesInternational Journal of Anatomy Radiology and Surgery, 2023
Introduction: Orbital index demonstrates the proportion of the orbital length to the orbital width and varies with race, geographic region, and ethnicity.
Sayantan Das   +3 more
doaj   +1 more source

On the periodic orbits of Hamiltonian systems [PDF]

open access: yesJournal of Mathematical Physics, 2010
We show how to apply to Hamiltonian differential systems recent results for studying the periodic orbits of a differential system using the averaging theory. We have chosen two classical integrable Hamiltonian systems, one with the Hooke potential and the other with the Kepler potential, and we study the periodic orbits which bifurcate from the ...
Llibre, Jaume, Rodrigues, Ana
openaire   +4 more sources

DOP prediction over Egypt from SP3 file for long-term

open access: yesAlexandria Engineering Journal, 2012
An important error source in satellite surveying deals with the geometry of the visible satellite constellation at the time of observation. This is similar to the situation in traditional surveys, where the geometry of the network of observed ground ...
Aly M. El-naggar
doaj   +1 more source

Orbital Decay in an Accreting and Eclipsing 13.7 Minute Orbital Period Binary with a Luminous Donor

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post–common envelope carbon–oxygen (CO) white dwarf, and a warm
Kevin B. Burdge   +26 more
doaj   +1 more source

On Orbital Period Changes in Nova Outbursts [PDF]

open access: yes, 2011
We propose a new mechanism that produces an orbital period change during a nova outburst. When the ejected material carries away the specific angular momentum of the white dwarf, the orbital period increases.
Banerjee   +42 more
core   +3 more sources

Optimal Stabilization of Periodic Orbits

open access: yesIFAC-PapersOnLine, 2023
Submitted for a journal on November 29 ...
Beck, Fabian, Sakamoto, Noboru
openaire   +3 more sources

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