Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On exponential cosmological type solutions in the model with
  Gauss-Bonnet term and variation of gravitational constant   A D-dimensional gravitational model with Gauss-Bonnet term is considered.
When ansatz with diagonal cosmological type metrics is adopted, we find
solutions with exponential dependence of scale factors (with respect to
"synchronous-like" variable) which describe an exponential expansion of "our"
3-dimensional factor-space and obey the observational constraints on the
temporal variation of effective gravitational constant G. Among them there are
two exact solutions in dimensions D = 22, 28 with constant G and also an
infinite series of solutions in dimensions D \ge 2690 with the variation of G
obeying the observational data.

16
The categories of this paper are: stat
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom