Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Killing Vector Fields of Constant Length on Riemannian Normal
  Homogeneous Spaces   Killing vector fields of constant length correspond to isometries of constant
displacement. Those in turn have been used to study homogeneity of Riemannian
and Finsler quotient manifolds. Almost all of that work has been done for group
manifolds or, more generally, for symmetric spaces. This paper extends the
scope of research on constant length Killing vector fields to a class of
Riemannian normal homogeneous spaces.

5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci