Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An elementary approach to local combinatorial formulae for the Euler
  class of a PL spherical fiber bundle   We present an elementary approach to local combinatorial formulae for the
Euler class of a fiber-oriented triangulated spherical fiber bundle. The
approach is based on sections averaging technique and very basic knowledge of
simplicial (co)homology theory. Our formulae are close relatives of those by N.
Mn\"{e}v.

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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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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: q-bio