Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Control and exponential stability for a transmission problem of a
  viscoelastic wave equation   In this article, we consider the energy decay of a viscoelastic wave in an
heterogeneous medium. To be more specific, the medium is composed of two
different homogeneous medium with a memory term located in one of the medium.
We prove exponential decay of the energy of the solution under geometrical and
analytical hypothesis on the memory term.

31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio