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The mixmaster universe is unambiguously chaotic

Neil J. Cornish·Janna J. Levin
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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.

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Neil J. Cornish, Janna J. Levin. 1997-09-15. The mixmaster universe is unambiguously chaotic. https://arxiv.org/abs/gr-qc/9709037

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