Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low Temperature Limit of Stability of Coherent Precession of Spin in the
  Superfluid 3He-B   It is shown that instability of homogeneous precession is caused by combined
effect of anisotropy of spin wave velocities and dipole interaction. In the
principal order on the ratio of the Leggett frequency to the Larmor frequency
the increments of growth of spin wave amplitudes are found. The magnitude of
the maximum increment for all deviation angles of spin from its equilibrium
orientation is calculated. The estimation is made of the minimum temperature
down to which the precession is stable.

34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom