Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial- and spatio-temporal pattern formation in optically driven
  discrete systems   Dynamical coherent structure (pattern) formation in the Klein-Gordon lattice
excited by periodic external field near the optical resonance is studied. It is
shown that besides spatial patterns discovered recently (V.M.Burlakov,
Phys.Rev.Lett. 80, 3988 (1998)) the spatio-temporal patterns can be generated
in the lattice in rather broad region of excitation parameters. An influence of
cubic anharmonicity in the lattice potential and that of random noise on the
pattern formation is examined.

30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
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The categories of this paper are: eess
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex