Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adiabatic waves along interfacial layers near the critical point   Near the critical point, isothermal interfacial zones are investigated
starting from a non-local density of energy. From the equations of motion of
thermocapillary fluids, we point out a new kind of adiabatic waves propagating
along the interfacial layers. The waves are associated with the second
derivatives of densities and propagate with a celerity depending on the
proximity of the critical point.

35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg