A numerical analysis of chaotic behaviour in Bianchi IX models
One considers the chaotic behaviour of the Bianchi IX cosmological models. The Lyapunov exponent \(\lambda\) is numerically calculated. It is shown that instead of converging to a constant value, it decreases steadily. One uses short-time averages, and it is shown that the usual method of calculating \(\lambda\) is invalid in the case of a cosmological model.
scientific article; zbMATH DE number 4145004