The era of matter domination
Scale factor (cosmology)
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The relative expansion of the universe is parametrized by a dimensionless scale factor a This leads to a radiation-dominated era in the very early universe but a . The dark-energy-dominated era began after the matter-dominated era, i.e.
Radiation and Matter in the Early Universe
Matter-dominated era - Oxford Reference
Description:Shin'ichi Nojiri , Sergei D. We develop the general program of the unification of matter-dominated era with acceleration epoch for scalar-tensor theory or dark fluid. The general reconstruction of single scalar-tensor theory is fulfilled. The explicit form of scalar potential for which the theory admits matter-dominated era, transition to acceleration and asymptotically deSitter acceleration epoch consistent with WMAP data is found. The interrelation of the epochs of deceleration-acceleration transition and matter dominance-dark energy transition for dark fluids with general EOS is investigated.