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The Bianchi IX attractor
2001 (English)In: Annales de l'Institute Henri Poincare. Physique theorique, ISSN 1424-0637, E-ISSN 1424-0661, Vol. 2, no 3, 405-500 p.Article in journal (Refereed) Published
Abstract [en]

We consider the asymptotic behaviour of spatially homogeneous space-times of Bianchi type IX close to the singularity (we also consider some of the other Bianchi types, e.g. Bianchi VIII in the stiff fluid case). The matter content is assumed to be an orthogonal perfect fluid with linear equation of state and zero cosmological constant. In terms of the variables of Wainwright and Hsu, we have the following results. In the stiff fluid case, the solution converges to a point for all the Bianchi class A types. For the other matter models we consider, the Bianchi IX solutions generically converge to an attractor consisting of the closure of the vacuum type II orbits. Furthermore, we observe that for all the Bianchi class A spacetimes, except those of vacuum Taub type, a curvature invariant is unbounded in the incomplete directions of inextendible causal geodesics.

Place, publisher, year, edition, pages
2001. Vol. 2, no 3, 405-500 p.
Keyword [en]
cosmologies, singularities, spacetimes, universe
Identifiers
URN: urn:nbn:se:kth:diva-20817ISI: 000170009100001OAI: oai:DiVA.org:kth-20817DiVA: diva2:339514
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Ringström, Hans

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