Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonances for Dirac operators on the half-line   We consider the 1D Dirac operator on the half-line with compactly supported
potentials. We study resonances as the poles of scattering matrix or
equivalently as the zeros of modified Fredholm determinant. We obtain the
following properties of the resonances: 1) asymptotics of counting function, 2)
estimates on the resonances and the forbidden domain.

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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: adap-org
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The categories of this paper are: physics
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The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph