Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the cohomology of regular surfaces isogenous to a product of curves
  with $\chi(\mathcal{O}_S)=2$   Let $S$ be a surface isogenous to a product of curves of unmixed type. After
presenting several results useful to study the cohomology of $S$ we prove a
structure theorem for the cohomology of regular surfaces isogenous to a product
of unmixed type with $\chi (\mathcal{O}_S)=2$. In particular we found two
families of surfaces of general type with maximal Picard number.

26
The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg