Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectrum of third sound cavity modes on superfluid $^3$He films   We report theoretical calculations of the spectrum of third sound modes for a
cylindrically symmetric film of superfluid $^3$He, and compare these results
with experimental data for the mode frequencies and amplitude spectrum of
surface waves of superfluid $^3$He films.

13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
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The categories of this paper are: eess
9
The categories of this paper are: nlin