Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monotone gradient dynamics and location of stationary
  (p,q)-configurations   Exploiting the monotone property of the gradient dynamics of the
Frenkel-Kontorova model, we locate in the space of (p,q)-configurations the
ordered and unordered stationary states, as well as forbidden regions for such
states. Moreover we show that some generalized Frenkel--Kontorova models
(associated to multiharmonic standard maps) can have ordered
(p,q)--configurations that are neither action minimizing nor minimaximizing,
and give their location with respect to the set of (p,q)--minimizers and
minimaximizers.

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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
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: econ
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The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol