Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chains of reproducing kernel Hilbert spaces generated by unimodular
  functions   We present a method to construct a chain of reproducing kernel Hilbert spaces
controlled by a first-order system of differential equations from a given
unimodular function satisfying several conditions. One of the applications of
that method is a conditional but richly general solution to the inverse problem
of recovering the structure Hamiltonian from a given de Branges space.

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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
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The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
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The categories of this paper are: econ
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga