Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Refined Difference Field Theory for Symbolic Summation   In this article we present a refined summation theory based on Karr's
difference field approach. The resulting algorithms find sum representations
with optimal nested depth. For instance, the algorithms have been applied
successively to evaluate Feynman integrals from Perturbative Quantum Field
Theory.

33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con