Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Excitons and Dark Fermions as Origins of Mott Gap, Pseudogap and
  Superconductivity in Cuprate Superconductors --- General Idea and Basic
  Concept Based on Gap Physics
18
The categories of this paper are: econ
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn