Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-peakon solutions of the Degasperis-Procesi equation   We present an inverse scattering approach for computing n-peakon solutions of
the Degasperis-Procesi equation (a modification of the Camassa-Holm (CH)
shallow water equation). The associated non-self-adjoint spectral problem is
shown to be amenable to analysis using the isospectral deformations induced
from the n-peakon solution, and the inverse problem is solved by a method
generalizing the continued fraction solution of the peakon sector of the CH
equation.

6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs