Results 251 to 260 of about 4,035,131 (289)

Ocular Misalignment and Motility Limitation in Orbital Tumors. [PDF]

J Ophthalmol
Kang MS, Kim N, Yang HK, Hwang JM.
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Note on orbit spaces

Note on orbit spaces
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A remark on orbit spaces of Lorentzian spaces

2023
Summary: We study the orbit space of Lorentzian spaces under the action of a connected and closed subgroup of the linear isometries. If dimension of the orbit space is bigger than two then topological characterization of the orbit space reduces to a problem in Riemannian geometry.
Mirzaie, Reza, Karimi, Hamdollah
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Differential Structure of Orbit Spaces

Canadian Journal of Mathematics, 2001
AbstractWe present a new approach to singular reduction of Hamiltonian systems with symmetries. The tools we use are the category of differential spaces of Sikorski and the Stefan-Sussmann theorem. The former is applied to analyze the differential structure of the spaces involved and the latter is used to prove that some of these spaces are smooth ...
Cushman, R.H., Sniatycki, J.
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Metrizability of proper G-spaces and their orbit spaces

Topology and its Applications, 2021
In this paper, a \textit{\(G\)-space} \(X\) is a completely regular Hausdorff space together with a fixed continuous action \(G\times X\to X\) defined by \((g,x)\mapsto gx\) of a locally compact group \(G\) on \(X\). Recall that a \(G\)-space \(X\) is called \textit{proper} in the sense of [\textit{R. S. Palais}, Ann. Math.
Antonyan, Sergey A., Juárez-Anguiano, Hugo, Zhang, Lili   +2 more
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Orbits of Maximal Vector Spaces

Algebra and Logic, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dimitrov, R. D., Harizanov, V.
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Space station orbit selection

Astrodynamics Conference, 1970
This paper presents a review of the techniques, considerations, and parametric flight mechanics data developed recently for the Space Station Phase B study to improve orbit selection. Typical experiment requirements for an Earth orbital Space Station mission are de'scribed and operational guidelines defined.
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Orbiting space stations

2011
The use of dogs and other animals on sounding rocket flights in the 1950s (Chapter 1), not to mention Sputnik 2, showed how closely linked early Soviet space science was to plans for manned spaceflight. It is no surprise that dogs and other animals continued to be used to anticipate the reactions of humans to manned spaceflight, for not just the early ...
Brian Harvey, Olga Zakutnyaya
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Satellite and Space Orbits

Nature, 1961
Space Trajectories A Symposium sponsored by the American Astronautical Society, the Advanced Research Projects Agency, and Radiation Incorporated. Edited by the Technical Staff, Research Division, Radiation Incorporated. Pp. x + 298. (New York : Academic Press, Inc.; London: Academic Press, Inc. (London), Ltd., 1960.) 12 dollars.
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Orbits and Space Travel

1991
The planets have been targets of exploration since the launching of Sputnik in 1957. Space probes have been sent to each of the planets known in antiquity and to all but one of the known planets. In this exercise, we explore first the properties of planetary orbits, then how to calculate their coordinates on the sky from their orbital elements, and ...
W. Schlosser, T. Schmidt-Kaler, E. F. Milone   +2 more
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