Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Note on Gravitational Memory in F(R)-theories and their Equivalent
  Scalar-Tensor Theories   In this paper we consider the implications that the effect gravitational
memory would have on primordial black holes, within the theoretical context of
$F(R)$ related scalar-tensor theories. As we will demonstrate, under the
assumption that the initial mass of the primordial black hole is such so that
it evaporates today, this can potentially constrain the $F(R)$ related theories
of gravity. We study two scalar-tensor models and discuss the evolution of
primordial black holes created at some initial time $t_f$ in the early
universe. The results between the two models vary significantly which shows us
that, if the effect of gravitational memory is considered valid, some of the
scalar-tensor models and their corresponding $F(R)$ theories must be further
constrained.

16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph