The mixmaster universe is unambiguously chaotic
arXiv:gr-qc/9709037
Abstract
The Mixmaster or Bianchi IX cosmological model has become one of the archetypal settings for studying gravitational dynamics. The past decade has seen a vigourous debate about whether or not the Mixmaster's dynamics is chaotic. In this talk we review our recent work in uncovering a chaotic invariant set of orbits in the Mixmaster phase space, and how we used this discovery to prove the dynamics is chaotic.
3 pages, 2 figures. To appear in the proceedings of the Eighth Marcel Grossmann Meeting, Jerusalem, June 1997 (WSP)