2 papers
gr-qc1999
On the Birth of a Closed Hyperbolic Universe
S. S. e Costa, H. V. Fagundes
We clarify and develop the results of a previous paper on the birth of a closed universe of negative spatial curvature and multiply connected topology. In particular we discuss the…
gr-qc1998
Birth of a Closed Universe of Negative Spatial Curvature
S. S. e Costa, H. V. Fagundes
We propose a modified form of the spontaneous birth of the universe by quantum tunneling. It proceeds through topology change and inflation, to eventually become a universe with cl…