Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stability theorems for symplectic and contact pairs   We prove Gray--Moser stability theorems for complementary pairs of forms of
constant class defining symplectic pairs, contact-symplectic pairs and contact
pairs. We also consider the case of contact-symplectic and contact-contact
structures, in which the constant class condition on a one-form is replaced by
the condition that its kernel hyperplane distribution have constant class in
the sense of E. Cartan.

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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat