Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmological Inflation in a Generalized Unimodular Gravity   We study some aspects of cosmological inflation in the framework of
unimodular $f(R)$ gravity. To be more clarified, we consider a generic $f(R)$
of the type $f(R)=R+\alpha R^{n}$. By considering Einstein frame counterpart of
the unimodular $f(R)$ gravity, we set the scalaron to be responsible for
cosmological inflation in this setup. We confront our model parameters space
with observational data and impose some constraints on the value of $n$ in this
manner. We show that for the number of e-folds $N=60$, the model is consistent
with observation if $1.89<n<1.918$.

35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom