Publicação: SMALLEST UNIVERSE OF NEGATIVE CURVATURE
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Data
1993-03-15
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American Physical Soc
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The smallest known three-dimensional closed manifold of curvature k = -1 was discovered a few years ago by Weeks. This kind of manifold is constructed from a hyperbolic polyhedron with faces pair-wise identified. Here it is used as the comoving spatial section of a Friedmann cosmological model, in the spirit of Ellis and Schreiber's idea of small universes. Its nontrivial global topology has the effect of producing multiple images of single cosmic sources, and this is the basis of an attempt to solve a famous controversy about the redshifts of quasars.
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Inglês
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Physical Review Letters. College Pk: American Physical Soc, v. 70, n. 11, p. 1579-1582, 1993.
