Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The BFKL-Regge expansion for the proton structure function at small $x$   We report an evaluation of subleading eigenvalues and eigenfunctions of the
BFKL equation in the color dipole representation with a running gauge coupling.
We present an expansion of the small-$x$ proton structure function
$F_{2p}(x,Q^2)$ in terms of the rightmost BFKL-singularities. The BFKL-Regge
phenomenology of DIS structure functions is developed which is shown to provide
remarkably good description of the data on $F_{2p}(x,Q^2)$ from E665 to HERA.

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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: physics
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The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: econ