Minimal Model of Dilatonic Gravity and Cosmological Constant
  We consider: minimal scalar-tensor model of gravity with Brans-Dicke factor $\omega(\Phi)\equiv 0$ and cosmological factor $\Pi(\Phi)$; restrictions on it from gravitational experiments; qualitative analysis of new approach to cosmological constant problem based on the huge amount of action in Universe; determination of $\Pi(\Phi)$ using time evolution of scale factor of Universe. 
P.Fiziev