Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the low frequency electromagnetic waves in quasi-two-dimensional
  metals   Here, we theoretically analyze spectra of weakly attenuated electromagnetic
waves which may appear in a Fermi-liquid of charge carriers in
quasi-two-dimensional (Q2D) layered conductors when an external magnetic field
is applied perpendicularly to the conducting layers. We study transverse modes
propagating along the magnetic field. The frequencies of the modes are assumed
to be lower than the cyclotron frequency of the charge carriers. It is shown
that Fermi-liquid interaction of the charge carriers in Q2D conductors gives
rise to a mode which cannot appear in a gase of charged quasiparticles, as well
as it happens in conventional metals. Also, we show that the Fermi surface
plofile may cause significant changes in the waves spectra and we analyze these
changes.

35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex