Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Zero modes in vortex-fermion system with compact extra space   The existence of fermionic zero modes is shown in the presence of vortex
configuration of pure $SU(2)$ gauge field on the manifold $M_4 \times S^2$.
From the perspective of four-dimensional effective theory, these zero modes are
almost the same as the Jackiw-Rossi type zero modes of the vortex-fermion
system.

37
The categories of this paper are: supr-con
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex