Publicação: On closed Einstein-de Sitter universes
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We briefly summarize the idea of cosmological models with compact, flat spatial sections. It has been suggested that, because of the COBE satellite's maps of the microwave background, such models cannot be small in the sense of Ellis, and hence are no longer interesting. Here we use the method of cosmic crystallography by Lehoucq et al. to show that these models are physically meaningful even if the size of the spatial sections is of the same order of magnitude as the radius of the observational horizon. © 1998 Elsevier Science B.V.
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Physics Letters, Section A: General, Atomic and Solid State Physics, v. 238, n. 4-5, p. 235-238, 1998.
