Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A gluing formula for Reidemeister-Turaev torsion   We extend Turaev's theory of Euler structures and torsion invariants on
3-manifolds to the case of vector fields having generic behavior on the
boundary. This allows to easily define gluings of Euler structures and to
develop a completely general gluing formula for Reidemeister torsion of
3-manifolds. Lastly, we describe a combinatorial presentation of Euler
structures via stream-spines, as a tool to effectively compute torsion.

16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
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The categories of this paper are: eess