Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integral Structure for Simple Singularities   We compute the image of the Milnor lattice of an ADE singularity under a
period map. We also prove that the Milnor latticecan be identified with an
appropriate relative $K$-group defined through the Berglund-H\"ubsch dual of
the corresponding singularity.

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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin