Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some survey remarks on Whitham theory and EM duality   The nature of the BA function and its adjoint for KP-Toda is traced through
the averaging method in generating the Whitham equations, differentials, and
symplectic forms, with connections to EM duality.

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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn