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On the exact solutions of the Bianchi IX cosmological model in the proper time

J. Springael·R. Conte·M. Musette
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Abstract

It has recently been argued that there might exist a four-parameter analytic solution to the Bianchi IX cosmological model, which would extend the three-parameter solution of Belinskii et al. to one more arbitrary constant. We perform the perturbative Painlevé test in the proper time variable, and confirm the possible existence of such an extension.

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J. Springael, R. Conte, M. Musette. 1998-04-08. On the exact solutions of the Bianchi IX cosmological model in the proper time. https://arxiv.org/abs/solv-int/9804008

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