Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asymmetric solitons and domain walls supported by inhomogeneous
  defocusing nonlinearity   We show that an inhomogeneous defocusing nonlinearity that grows toward the
periphery in the positive and negative transverse directions at different rates
can support strongly asymmetric fundamental and multipole bright solitons,
which are stable in wide parameter regions. In the limiting case when
nonlinearity is uniform in one direction, solitons transform into stable domain
walls (fronts), with constant or oscillating intensity in the homogeneous
region, attached to a tail rapidly decaying in the direction of growing
nonlinearity.

37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph