Braneworld nonminimal inflation with induced gravity

We study cosmological inflation on a warped Dvali-Gabadadze-Porrati braneworld where an inflaton field is nonminimally coupled to induced gravity on the brane. We present a detailed calculation of the perturbations and inflation parameters both in the Jordan and Einstein frame. We analyze the parameter space of the model fully to justify the viability of the model in confrontation with recent observational data. We compare the results obtained in these two frames also in order to judge which frame gives more acceptable results in comparison with observational data.