Seminarium Teorii Oddziaływań Elementarnych

I will consider Starobinsky and Higgs inflation with a set of higher order corrections. In the Einstein frame we have found a potential with the Starobinsky plateau, steep slope and possibly with an additional minimum, local maximum or a saddle point. I will present three types of in sationary behaviour that may be generated in this model:
i) inflation on the plateau,
ii) at the local maximum (topological inflation),
iii) at the saddle point.