Bianchi V inflation in the Brans-Dicke theory?

Some exact solutions in the Brans-Dicke (BD) theory are shown for a Bianchi V metric having the properties of inflationary expansion, graceful exit and asymptotic evolution to a Friedmann-Robertson-Walker open model. It is remarkable that inflationary behaviour can occur, even without a cosmological potential or constant. However, the horizon and flatness problems cannot be solved within the standard BD theory because the inflationary period is severely restricted by the value of the BD parameter .