Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Travelling Wave Solutions in Nonlinear Diffusive and Dispersive Media   We investigate the presence of soliton solutions in some classes of nonlinear
partial differential equations, namely generalized Korteweg-de Vries-Burgers,
Korteveg-de Vries-Huxley, and Korteveg-de Vries-Burgers-Huxley equations, which
combine effects of diffusion, dispersion, and nonlinearity. We emphasize the
chiral behavior of the travelling solutions, whose velocities are determined by
the parameters that define the equation. For some appropriate choices, we show
that these equations can be mapped onto equations of motion of relativistic 1+1
dimensional phi^{4} and phi^{6} field theories of real scalar fields. We also
study systems of two coupled nonlinear equations of the types mentioned.

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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga