Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stability of multi antipeakon-peakons profile   The Camassa-Holm equation possesses well-known peaked solitary waves that can
travel to both directions. The positive ones travel to the right and are called
peakon whereas the negative ones travel to the left and are called antipeakons.
Their orbital stability has been established by Constantin and Strauss in
\cite{CS1}. In \cite{EL2} we have proven the stability of trains of peakons.
Here, we continue this study by extending the stability result to the case of
ordered trains of anti-peakons and peakons.

16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics