Saddle point inflation from $f(R)$ theory

Michal Artymowski, Zygmunt Lalak, Marek Lewicki

We analyse several saddle point inflationary scenarios based on power-law $f(R)$ models. We investigate inflation resulting from $f(R) = R + α_n M^{2(1-n)}R^n + α_{n+1}M^{-2n}R^{n+…