Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial behaviour in dynamical thermoelasticity backward in time for
  porous media   The aim of this paper is to study the spatial behaviour of the solutions to
the boundary-final value problems associated with the linear theory of elastic
materials with voids. More precisely the present study is devoted to porous
materials with a memory effect for the intrinsic equilibrated body forces. An
appropriate time-weighted volume measure is associated with the backward in
time thermoelastic processes.
  Then, a first-order partial differential inequality in terms of such measure
is established and further is shown how it implies the spatial exponential
decay of the thermoelastic process in question.

36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th