Quartic hilltop inflation revisited
  We implement a procedure by which the parameters present in the potential of
Quartic Hilltop Inflation (QHI) are eliminated in favor of the scalar spectral
index $n_s$ and the tensor-to-scalar ratio $r$. By doing this it is posible to
obtain in a straightforward and simple way the equations of a previous analysis
where an analytical treatment of QHI in the large field limit is given. This
procedure also allows a more precise discussion of general properties of the
model. Also, using a constraint from the reheating epoch it is possible to find
bounds for the parameters of the model as well as for quantities of interest
such as the running of the scalar index, the reheating temperature and the
inflationary scale. Since the bounds found come from expressions given
exclusively in terms of $n_s$ and $r$ they will continue to narrow as the
measurements of the observables $n_s$ and $r$ become more sensitive.
