Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Local Diffeomorphisms in Symplectic Space and Hamiltonian Systems with
  Constraints   In this paper we obtain exact normal forms with functional invariants for
local diffeomorphisms, under the action of the symplectomorphism group in the
source space. Using these normal forms we obtain exact classification results
for the first occurring singularities of Hamiltonian systems with one-sided
constraints, a problem posed by R. B. Melrose in his studies of glancing
hypersurfaces.

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The categories of this paper are: econ
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int