Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Differential Isomorphism and Equivalence of Algebraic Varieties   In this survey article we discuss the question: to what extent is an
algebraic variety determined by its ring of differential operators? In the case
of affine curves, this question leads to a variety of mathematical notions such
as the Weyl algebra, Calogero-Moser spaces and the adelic Grassmannian. We give
a fairly detailed overview of this material.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org