Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Torsional Elastic Waves in Cylindrical Waveguide with Wedge Dislocation   We describe propagation of torsional elastic waves in cylindrical waveguide
with wedge dislocation in the framework of geometric theory of defects. The
defect changes the dispersion relation. For positive deficit angles, it
increases the phase velocity, and decreases the group velocity of the wave.

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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: econ