Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relative stability of a ferroelectric state in (Na0.5Bi0.5)TiO3-based
  compounds under substitutions: Role of a tolerance factor in expansion of the
  temperature interval of stable ferroelectric state
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org