Affiliation:
1. Faculty of Mathematics and Informatics, Ovidius University of Constanta, Constanta, Romania
Abstract
Einstein’s field equations allow exotic solutions as de Sitter and anti-de Sitter universes without matter, wormholes solutions and universes without a proper time coordinate as Gödel’s one. In this paper, we are interested in highlighting a wormhole-type universe solution of Einstein’s field equations which, when the wormhole disappears, turns into a universe without a proper time coordinate. The example is done both in classical and in modified [Formula: see text] gravity.
Publisher
World Scientific Pub Co Pte Ltd
Subject
Physics and Astronomy (miscellaneous)