Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extrinsic hyperspheres in manifolds with special holonomy   We describe extrinsic hyperspheres and totally geodesic hypersurfaces in
manifolds with special holonomy. In particular we prove the nonexistence of
extrinsic hyperspheres in quaternion-Kaehler manifolds. We develop a new
approach to extrinsic hyperspheres based on the classification of special
Killing forms.

35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga