Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comparison of certain complexes of modules of generalized fractions and
  Cech complexes   We establish an explicit quasi-isomophism of complexes, which is homogeneous
in graded situation, from a given Cech complex of modules of generalized
fractions.

3
The categories of this paper are: physics
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The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: nlin
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The categories of this paper are: econ
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg