Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On S-matrix of Schrodinger Operators with Non-Symmetric Zero-Range
  Potentials   Non-self-adjoint Schrodinger operators which correspond to non-symmetric
zero-range potentials are investigated. We show that various properties of
these operators (eigenvalues, exceptional points, spectral singularities and
the property of similarity to a self-adjoint operator) are completely
determined by poles of the corresponding S-matrix.

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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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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: chao-dyn
0
The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an