Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the semi-classical limit for the nonlinear Schrodinger equation   We review some results concerning the semi-classical limit for the nonlinear
Schrodinger equation, with or without an external potential. We consider
initial data which are either of the WKB type, or very concentrated as the
semi-classical parameter goes to zero. We sketch the techniques used according
to various frameworks, and point out some open problems.

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The categories of this paper are: stat
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The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics