Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exchange relations of Level-two vertex operators of $U_q(\hat{sl_2})$   We calculate the exchange relations of vertex operators of $U_q(\hat{sl_2})$
at level-two from its bosonic realization. The corresponding invertibility
relation of type I vertex operators is also studied.

0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph