Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Riemann problem with additional singularities   The Riemann problem is studied in the case when the unknown function has
nonisolated singularities, concentrated on the real axis. The problem is used
for the factorization of functions, holomorphic outside of the unit circle and
the real axis, in the form of the product of two functions which have
singulariries on the given set of the real axis.

26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph