Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Moduli of pre-$\cal D$-modules, perverse sheaves and the Riemann-Hilbert
  morphism -I   We construct a moduli scheme for semistable pre-$\D$-modules with prescribed
singularities and numerical data on a smooth projective variety. These
pre-$\D$-modules are to be viewed as regular holonomic $\D$-modules with `level
structure'. We also construct a moduli scheme for perverse sheaves on the
variety with prescribed singularities and other numerical data, and represent
the de Rham functor (which gives the Riemann-Hilbert correspondence) by an
analytic morphism between the two moduli schemes.

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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: q-fin