Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Krein systems and canonical systems on a finite interval: accelerants
  with a jump discontinuity at the origin and continuous potentials   This paper is devoted to connections between accelerants and potentials of
Krein systems and of canonical systems of Dirac type, both on a finite
interval. It is shown that a continuous potential is always generated by an
accelerant, provided the latter is continuous with a possible jump
discontinuity at the origin. Moreover, the generating accelerant is uniquely
determined by the potential. The results are illustrated on pseudo-exponential
potentials. The paper is a continuation of the earlier paper of the authors [1]
dealing with the direct problem for Krein systems.

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The categories of this paper are: alg-geom
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The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: bayes-an
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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: nucl-ex
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The categories of this paper are: dg-ga