Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Knizhnik--Zamolodchikov equation for $U_q (\widehat{ sl_n})$ and
  integral formula   Presented is an integral formula for solutions to the quantum
Knizhnik--Zamolodchikov equation of level $0$ associated with the vector
representation of $U_q (\widehat{ sl_n})$. This formula gives a generalization
of both our previous work for $U_q (\widehat{ sl_2})$ and Smirnov's formula for
form factors of $SU(n)$ chiral Gross-Neveu model.

17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ