Aldrovandi, R.Almeida, JPBPereira, J. G.2014-05-202014-05-202006-06-01Journal of Geometry and Physics. Amsterdam: Elsevier B.V., v. 56, n. 6, p. 1042-1056, 2006.0393-0440http://hdl.handle.net/11449/23440The infinite cosmological constant limit of the de Sitter solutions to Einstein's equation is studied. The corresponding spacetime is a singular, four-dimensional cone-space, transitive under proper conformal transformations, which constitutes a new example of maximally-symmetric spacetime. Grounded on its geometric and thermodynamic properties, some speculations are made in connection with the primordial universe. (c) 2005 Elsevier B.V. All rights reserved.1042-1056engcosmological termconformal transformationsgroup contractionsArtigo10.1016/j.geomphys.2005.06.004WOS:000237819700006Acesso restrito1599966126072450