Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recovery of material parameters in transversely isotropic media   In this paper we show that in anisotropic elasticity, in the particular case
of transversely isotropic media, under appropriate convexity conditions,
knowledge of the qSH wave travel times determines the tilt of the axis of
isotropy as well as some of the elastic material parameters, and the knowledge
of qP and qSV travel times conditionally determines a subset of the remaining
parameters, in the sense if some of the remaining parameters are known, the
rest are determined, or if the remaining parameters satisfy a suitable
relation, they are all determined, under certain non-degeneracy conditions.
Furthermore, we give a precise description of the additional issues, which are
a subject of ongoing work, that need to be resolved for a full treatment.

8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex