Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extrapolation of perturbation-theory expansions by self-similar
  approximants   The problem of extrapolating asymptotic perturbation-theory expansions in
powers of a small variable to large values of the variable tending to infinity
is investigated. The analysis is based on self-similar approximation theory.
Several types of self-similar approximants are considered and their use in
different problems of applied mathematics is illustrated. Self-similar
approximants are shown to constitute a powerful tool for extrapolating
asymptotic expansions of different natures.

5
The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
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The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex