Extrinsic spheres;
Special holonomy;
Hypersurfaces;
COMPACT SYMMETRIC-SPACES;
SPHERES;
HYPERSURFACES;
PRODUCTS;
D O I:
10.1016/j.difgeo.2012.10.003
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We describe extrinsic hyperspheres and totally geodesic hypersurfaces in manifolds with special holonomy. In particular we prove the nonexistence of extrinsic hyperspheres in quaternion-Kahler manifolds. We develop a new approach to extrinsic hyperspheres based on the classification of special Killing forms. (c) 2012 Elsevier B.V. All rights reserved.
机构:
Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2AZ, EnglandImperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England
Chaemjumrus, N.
Hull, C. M.
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机构:
Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2AZ, EnglandImperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England
机构:
Univ Paris XI, Lab Signaux & Syst L2S Supelec, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, FranceUniv Paris XI, Lab Signaux & Syst L2S Supelec, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, France
Chitour, Yacine
Grong, Erlend
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机构:
Univ Paris Saclay, Lab Signaux & Syst L2S Supelec, Univ Paris Sud, CNRS, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, France
Univ Bergen, Dept Math, POB 7803, N-5020 Bergen, NorwayUniv Paris XI, Lab Signaux & Syst L2S Supelec, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, France
Grong, Erlend
Jean, Frederic
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机构:
Univ Paris Saclay, UMA, ENSTA ParisTech, 828 Bd Marechaux, F-91762 Palaiseau, FranceUniv Paris XI, Lab Signaux & Syst L2S Supelec, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, France
Jean, Frederic
Kokkonen, Petri
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机构:Univ Paris XI, Lab Signaux & Syst L2S Supelec, 3 Rue Joliot Curie, F-91192 Gif Sur Yvette, France