Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Direct imaging for the moment tensor point sources of elastic waves   We investigate an inverse source problem of the time-harmonic elastic wave
equation. Some novel sampling-type numerical schemes are proposed to identify
the moment tensor point sources in the Lam\'e system from near-field
measurements. Rigorous theoretical justifications are provided to show that the
locations and moment tensors of the elastic sources can be uniquely determined
from the multi-frequency displacement data. Several numerical examples are also
presented to illustrate the validity and robustness of the proposed method.

17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc