Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Note on Anosov flows of non-compact Riemannian manifolds   In this note we formulate a condition for complete, connected and non-compact
Riemannian manifolds which implies no conjugate points in case that the
geodesic flow is Anosov with respect to the Sasaki metric.

13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg