Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalized gauge transformation approach to construct dark solitons of
  coupled nonlinear Schrodinger type equations   We harness the freedom in the celebrated gauge transformation approach to
generate dark solitons of coupled nonlinear Schr\"odinger (NLS) type equations.
The new approach which is purely algebraic could prove to be very useful,
particularly in the construction of vector dark solitons in the fields of
nonlinear optics, plasma physics and Bose-Einstein condensates. We have
employed this algebraic method to coupled Gross- Pitaevskii (GP) and NLS
equations and obtained dark solitons.

5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn