Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Differential dispersion relations with an arbitrary number of
  subtractions: a recursive approach   Making use of a recursive approach, derivative dispersion relations are
generalized for an arbitrary number of subtractions. The results for both cross
even and odd amplitudes are theoretically consistent at sufficiently high
energies and in the region of small momentum transfer.

20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-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
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex