Phases of the Brans-Dicke cosmology with matter

We study the cosmology of the Brans-Dicke theory with perfect fluid-type ma tter. In our previous work, we found exact solutions for any Brans-Dicke pa rameter omega and for the general parameter gamma of the equation of state. In this paper, we further study the cosmology of those solutions by analyz ing them according to their asymptotic behaviors. The cosmology is classifi ed into nineteen phases according to the values of gamma and omega. The eff ect of the cosmological constant on the Brans-Dicke theory is a particular case of our model. We plot the time evolution of the scale factor by using numerical investigations. We also compare the solutions for the theories wi th and without matter.