Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Riemann-Hilbert Approach to the Elastodynamic Equation. Half plane   We show, how the Riemann-Hilbert approach to the elastodynamic equations,
which have been suggested in our preceding papers, works in the half-plane
case. We pay a special attention to the appearance of the Rayleigh waves within
the scheme.

18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci