Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structural Stability for Fibrewise Anosov Diffeomorphisms on Principal
  Torus Bundles   We show a fibre-preserving self-diffeomorphism which has hyperbolic
splittings along the fibres on a compact principal torus bundle is
topologically conjugate to a map that is linear in the fibres.

4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga