Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Small Solitons and Multi-Solitons in Generalized Davey-Stewartson System   This paper is concerned with the generalized Davey-Stewarston system in two
dimensional space. Existence and stability of small solitons are proved by
solving two correlative constrained variational problems and spectrum analysis.
In addition, multi-solitons with different speeds are constructed by bootstrap
argument.

1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an