Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unitary Inequivalent Representations and Quantum Physics   In this paper we discuss the unitary inequivalentness in quantum physics.
Then based on some of the current outstanding problems in theoretical physics,
we will show the important role of this concept to better understand the
physical theories.

20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc