Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation and controlling of ultrashort self-similar solitons and rogue
  waves in inhomogeneous optical waveguide   We present exact bright, dark and rogue soliton solutions of generalized
higherorder nonlinear Schrodinger equation, describing the ultrashort beam
propagation in tapered waveguide amplifier, via a similarity transformation
connected with the constant-coefficient Sasa-Satsuma and Hirota equations. Our
exact analysis takes recourse to identify the allowed tapering profile in
conjunction with appropriate gain function which corresponds to PT-symmetric
waveguide. We extend our analysis to study the effect of tapering profiles and
higher-order terms on the evolution of self-similar waves and thus enabling one
to control the self-similar wave structure and dynamical behavior.

29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess