Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mellin-Barnes representations of Feynman diagrams, linear systems of
  differential equations, and polynomial solutions   We argue that the Mellin-Barnes representations of Feynman diagrams can be
used for obtaining linear systems of homogeneous differential equations for the
original Feynman diagrams with arbitrary powers of propagators without recourse
to the integration-by-parts technique. These systems of differential equations
can be used (i) for the differential reductions to sets of basic functions and
(ii) for counting the numbers of master integrals.

26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph