Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Computing LDOS resonance energy shifts of monatomic doped chains   An analytical method to compute the LDOS energy spectrum and stationary
states for finite size doped monatomic chains modelled by an effective
one-dimensional tight-binding hamiltonian is presented. It is based on the
formal solution of linear second order recurrence relations. We also study the
LDOS energy spectrum of some doped monatomic chains applying a perturbative
approach to the characteristic equation of the reference metallic structure
doped with a few extraneous atoms.

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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: funct-an
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The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg