Extended closed inflationary universes

Abstract

In this paper we study a type of model for closed inflationary universe models using the Jordan-Brans-Dicke theory. Herein we determine and characterize the existence of $\Omega >$1, together with the period of inflation. We have found that our model, which takes into account a Jordan-Brans-Dicke type of theory, is less restrictive than the one used in Einstein's theory of general relativity. Our results are compared to those found in Einstein's theory of Relativity.

9 pages, 4 figures, accepted by Class. Quant. Grav

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• Tachyonic Universes in Patch Cosmologies with $\Omega >1$