Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: One loop integrals reduction   By further examining the symmetry of external momenta and masses in Feynman
integrals, we fulfilled the method proposed by Battistel and Dallabona, and
showed that recursion relations in this method can be applied to simplify
Feynman integrals directly.

25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom