Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First and Second Laws of Thermodynamics in Modified Ho\v{r}ava-Lifshitz
  $F(R)$ Gravity   In this paper we discuss the thermodynamics of the apparent horizon in $F(R)$
Ho\v{r}ava-Lifshitz gravity in equilibrium and non-equilibrium ensembles. We
show that the second law of thermodynamics can be satisfied in this non
relativistic theory.

27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
16
The categories of this paper are: stat
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int