Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The n-order rogue waves of Fokas-Lenells equation   Considering certain terms of the next asymptotic order beyond the nonlinear
Schrodinger equation (NLS) equation, the Fokas-Lenells (FL) equation governed
by the FL system arise as a model for nonlinear pulse propagation in optical
fibers. The expressions of the q[n] and r[n] in the FL system are generated by
n-fold Darboux transformation (DT). Further, a Taylor series expansion about
the n-order breather solutions q[n] generated using DT by assuming periodic
seed solutions under reduction can generate the n-order rogue waves of the FL
equation explicitly with 2n+3 free parameters.

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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: physics
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The categories of this paper are: acc-phys
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The categories of this paper are: astro-ph
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The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom