Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Normal State Resistivity of Underdoped YBa2Cu3Ox Thin Films and
  La2-xSrxCuO4 Ultra-Thin Films under Epitaxial Strain
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph