Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recovery of Dirac system from the rectangular Weyl matrix function   Weyl theory for Dirac systems with rectangular matrix potentials is
non-classical. The corresponding Weyl functions are rectangular matrix
functions. Furthermore, they are non-expansive in the upper semi-plane. Inverse
problems are treated for such Weyl functions, and some results are new even for
the square Weyl functions. High energy asymptotics of Weyl functions and
Borg-Marchenko type uniqueness results are derived too.

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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph