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arXiv · 1401.0954

An exact smooth Gowdy-symmetric generalized Taub-NUT solution

Florian Beyer·Jörg Hennig
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Abstract

In a recent paper (Beyer and Hennig, 2012 [9]), we have introduced a class of inhomogeneous cosmological models: the smooth Gowdy-symmetric generalized Taub-NUT solutions. Here we derive a three-parametric family of exact solutions within this class, which contains the two-parametric Taub solution as a special case. We also study properties of this solution. In particular, we show that for a special choice of the parameters, the spacetime contains a curvature singularity with directional behaviour that can be interpreted as a "true spike" in analogy to previously known Gowdy symmetric solutions with spatial T3-topology. For other parameter choices, the maximal globally hyperbolic region is singularity-free, but may contain "false spikes".

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Florian Beyer, Jörg Hennig. 2014-01-05. An exact smooth Gowdy-symmetric generalized Taub-NUT solution. https://doi.org/10.1088/0264-9381/31/9/095010

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