- upper half-space
-
верхнее полупространство
English-Russian dictionary of geology. 2011.
upper half-space
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Siegel upper half-space — In mathematics, the Siegel upper half space of degree n is the set of n times; n symmetric matrices over the complex number field whose imaginary part is positive definite. It is named in honor of Carl Ludwig Siegel.In the case n = 1, the Siegel… … Wikipedia
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de Sitter space — In mathematics and physics, a de Sitter space is the analog in Minkowski space, or spacetime, of a sphere in ordinary, Euclidean space. The n dimensional de Sitter space , denoted dSn, is the Lorentzian manifold analog of an n sphere (with its… … Wikipedia
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Space Shuttle Columbia — Columbia OV 102 Space Shuttle Columbia launches on STS 109(HST 3B)to repair the Hubble Space telescope.This was the final sucessful mission of Columbia before STS 107 OV designation OV 102 Country … Wikipedia
Space tether — Artist s conception of satellite with a tether Space tethers are cables, usually long and very strong, which can be used for propulsion, stabilization, or maintaining the formation of space systems by determining the trajectory of spacecraft and… … Wikipedia
