We have considered flat Friedmann-Robertson-Walker (FRW) model of the universe and reviewed modified Chaplygin gas as fluid source. Associated with scalar field model, we determined Hubble parameter a generating function in terms field. Instead hyperbolic function, taken Jacobi elliptic Abel obtained Chaplygin-Jacobi (MCJG) Chaplygin-Abel (MCAG) equation states, respectively. Next, assumed that...

The possibility of unifying dark-matter and dark-energy has recently attracted considerable interest. In this so called quartessence scenario, a single component is responsible for both the clustering of matter and the accelerated expansion of the universe. A model archetype for such scenario is provided by the Chaplygin gas. Although this model is in agreement with the data on the expansion hi...

A curvature self-interaction of the cosmic gas is shown to mimic a cosmological constant or other forms of dark energy, such as a rolling tachyon condensate or a Chaplygin gas. Any given Hubble rate and deceleration parameter can be traced back to the action of an effective curvature force on the gas particles. This force self-consistently reacts back on the cosmological dynamics. The links bet...