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The evolution of μ (multiplied by 104) and weff versus the redshift z = a0/a − 1 for the model (12.16) with parameters α = 100 and λ = 3 × 10−4. The initial conditions are chosen to be x = −1.499985, y = 20, and Ωm = 0.99999. We do not take into account radiation in this simulation. From [182].
