Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Causality Principle in the Field Theory of Gravitation   The causality principle for the Relativistic Theory of Gravitation (RTG) is
presented. It is a straightforward consequence of the RTG basic postulates. The
necessary conditions for physical solutions of the gravitational field
equations to be fulfilled are given.

16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th