Results 31 to 40 of about 783,055 (280)

Five new methods of celestial mechanics

AIMS Mathematics, 2020
The last volume of the book “Les méthods nouvelles de la mécanique céleste” by Poincaré [28] was published more than 120 years ago. Since then, the following methods have arisen. 1.
Alexander Bruno
doaj   +1 more source

Celestial mechanics in Kerr spacetime [PDF]

, 2002
The dynamical parameters conventionally used to specify the orbit of a test particle in Kerr spacetime are the energy $E$, the axial component of the angular momentum, $L_{z}$, and Carter's constant $Q$.
Caroll B W, Cutler C, Frolov V P, Glampedakis C, Goldstein H, Goldstein H, Hille E, Ho L C, Hughes S A, Misner C W, Stoghianidis L, Thirring W, Thirring W, W Schmidt   +13 more
core   +2 more sources

On the Proper Treatment of Dynamics in Cognitive Science

Topics in Cognitive Science, EarlyView., 2023
Abstract This essay examines the relevance of dynamical ideas for cognitive science. On its own, the mere mathematical idea of a dynamical system is too weak to serve as a scientific theory of anything, and dynamical approaches within cognitive science are too rich and varied to be subsumed under a single “dynamical hypothesis.” Instead, after first ...
Randall D. Beer
wiley   +1 more source

Celestial mechanics of elastic bodies [PDF]

, 2006
We construct time independent configurations of two gravitating elastic bodies. These configurations either correspond to the two bodies moving in a circular orbit around their center of mass or strictly static configurations.Comment: 16 pages, 2 figures,
Bernd G. Schmidt, D. Gilbarg, J.E. Marsden, L. Lichtenstein, P.G. Ciarlet, R. Beig, R. Beig, Robert Beig, S. Chandrasekhar, S. Lang, T. Valent   +10 more
core   +4 more sources

Celestial mechanics and polarization optics of the Kordylewski dust cloud in the Earth–Moon Lagrange point L5 – Part II. Imaging polarimetric observation: new evidence for the existence of Kordylewski dust cloud [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Telescopes mounted with polarizers can study the neutral points of the Earths atmosphere, the solar corona, the surface of planets/moons of the Solar System, distant stars, galaxies and nebulae.
Judit Sl'iz-Balogh, A. Barta, G'abor Horv'ath   +2 more
semanticscholar   +1 more source

Relativistic Celestial Mechanics with PPN Parameters [PDF]

, 1999
Starting from the global parametrized post-Newtonian (PPN) reference system with two PPN parameters $\gamma$ and $\beta$ we consider a space-bounded subsystem of matter and construct a local reference system for that subsystem in which the influence of ...
A. Caporali, A. Caporali, A. Caporali, A. Papapetrou, A. S. Eddington, B. Guinot, B. M. Barker, B. M. Barker, B. M. Barker, B. M. Barker, B. M. Barker, B. Shahid-Saless, C. M. Will, C. M. Will, C. W. Misner, E. Corinaldesi, G. Börner, H. A. Lorentz, H. A. Lorentz, H. P. Robertson, J. Droste, J. Kovalevsky, K. Nordtvedt, K. Nordtvedt, K. Nordtvedt, K. Nordtvedt, K. Nordtvedt, K. Nordtvedt, K. Nordtvedt, K. Nordtvedt, L. Blanchet, L. Blanchet, L. I. Schiff, L. Lindegren, L. P. Grishchuk, M. Froeschle, M. H. Soffel, M. Mathisson, M. Soffel, Michael H. Soffel, N. Ashby, N. Ashby, N. Kalitzin, P. K. Seidelmann, R. Michalska, S. A. Klioner, S. A. Klioner, S. A. Klioner, S. A. Klioner, S. A. Klioner, S. A. Klioner, S. A. Klioner, S. Chandrasekhar, S. Chandrasekhar, S. Chandrasekhar, S. M. Kopeikin, S. M. Kopejkin, Sergei A. Klioner, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, T. Damour, Th. Apostolatos, Th. Apostolatos, V. A. Brumberg, V. A. Brumberg, W. De Sitter, W. De Sitter, W. Tulczyjew   +71 more
core   +4 more sources

Celestial mechanics and polarization optics of the Kordylewski dust cloud in the Earth–Moon Lagrange point L5 – I. Three-dimensional celestial mechanical modelling of dust cloud formation [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Since the discovery in 1772 of the triangular Lagrange points L4 and L5 in the gravitational field of two bodies moving under the sole influence of mutual gravitational forces, astronomers found a large number of minor celestial bodies around these ...
Judit Sl'iz-Balogh, A. Barta, G'abor Horv'ath   +2 more
semanticscholar   +1 more source

Rupture et continuité dans la physique française : Henri Poincaré et les fondements mécaniques de la thermodynamique

Philosophia Scientiæ, 2023
After 1850, Laplacian or Amperean molecular physics found itself in competition with other approaches involving thermodynamics and kinetic theories. Henri Poincaré is one of the very few French scientists to have made a significant contribution to the ...
João Príncipe
doaj   +1 more source

Tying celestial mechanics to Earth’s ice ages

Physics today, 2020
Gradual falls and sharp rises in temperature for millions of years have profoundly affected living conditions on the planet and, consequently, our own evolution.
M. Maslin
semanticscholar   +1 more source

DYNAMICAL EVOLUTION NEAR-PARABOLIC COMETS TO HALLEY-TYPE ORBITS

Odessa Astronomical Publications, 2017
The capture of comet from the near parabolic flux of the Oort cloud to Halley-type orbits (P < 200 yr, perihelion distanses q < 1,5 AU, and Tisserand parametr T < 2) is investigated Two types of capture into Halley-type orbits are found.
E. E. Biryukov
doaj   +1 more source