Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recursion Operators and Nonlocal Symmetries for Integrable rmdKP and
  rdDym Equations   We find direct and inverse recursion operators for integrable cases of the
rmdKP and rdDym equations. Also, we study actions of these operators on the
contact symmetries and find shadows of nonlocal symmetries of these equations.

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The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
1
The categories of this paper are: cs
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The categories of this paper are: hep-th
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
2
The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat