Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solving the multi-frequency electromagnetic inverse source problem by
  the Fourier method   This work is concerned with an inverse problem of identifying the current
source distribution of the time-harmonic Maxwell's equations from
multi-frequency measurements. Motivated by the Fourier method for the scalar
Helmholtz equation and the polarization vector decomposition, we propose a
novel method for determining the source function in the full vector Maxwell's
system. Rigorous mathematical justifications of the method are given and
numerical examples are provided to demonstrate the feasibility and
effectiveness of the method.

32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th