Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Highly accurate calculation of the real and complex eigenvalues of
  one-dimensional anharmonic oscillators   We draw attention on the fact that the Riccati-Pad\'e method developed some
time ago enables the accurate calculation of bound-state eigenvalues as well as
of resonances embedded either in the continuum or in the discrete spectrum. We
apply the approach to several one-dimensional models that exhibit different
kind of spectra. In particular we test a WKB formula for the imaginary part of
the resonance in the discrete spectrum of a three-well potential.

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The categories of this paper are: comp-gas
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
3
The categories of this paper are: physics
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph