English

A new proof of the Bianchi type IX attractor theorem

General Relativity and Quantum Cosmology 2009-03-27 v1

Abstract

We consider the dynamics towards the initial singularity of Bianchi type IX vacuum and orthogonal perfect fluid models with a linear equation of state. The `Bianchi type IX attractor theorem' states that the past asymptotic behavior of generic type IX solutions is governed by Bianchi type I and II vacuum states (Mixmaster attractor). We give a comparatively short and self-contained new proof of this theorem. The proof we give is interesting in itself, but more importantly it illustrates and emphasizes that type IX is special, and to some extent misleading when one considers the broader context of generic models without symmetries.

Keywords

Cite

@article{arxiv.0901.0806,
  title  = {A new proof of the Bianchi type IX attractor theorem},
  author = {J. Mark Heinzle and Claes Uggla},
  journal= {arXiv preprint arXiv:0901.0806},
  year   = {2009}
}

Comments

26 pages, 5 figures

R2 v1 2026-06-21T11:58:14.623Z