Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Variational Approximations of Bifurcations of Asymmetric Solitons in
  Cubic-Quintic Nonlinear Schroedinger Lattices   Using a variational approximation we study discrete solitons of a nonlinear
Schroedinger lattice with a cubic-quintic nonlinearity. Using an ansatz with
six parameters we are able to approximate bifurcations of asymmetric solutions
connecting site-centered and bond-centered solutions and resulting in the
exchange of their stability. We show that the numerically exact and variational
approximations are quite close for solitons of small powers.

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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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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: bayes-an
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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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: solv-int
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The categories of this paper are: eess