Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semiclassical inverse spectral problem for elastic Rayleigh waves in
  isotropic media   We analyze the inverse spectral problem on the half line associated with
elastic surface waves. Here, we extend the treatment of Love waves [arXiv:
1908.10529] to Rayleigh waves. Under certain conditions, and assuming that the
Poisson ratio is constant, we establish uniqueness and present a reconstruction
scheme for the S-wave speed with multiple wells from the semiclassical spectrum
of these waves.

31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an