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Transactions of the American Mathematical Society
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When are the tangent sphere bundles of a Riemannian manifold reducible?

Author(s): E. Boeckx
Journal: Trans. Amer. Math. Soc. 355 (2003), 2885-2903.
MSC (2000): Primary 53B20, 53C12, 53C20
Posted: March 14, 2003
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Abstract | References | Similar articles | Additional information

Abstract: We determine all Riemannian manifolds for which the tangent sphere bundles, equipped with the Sasaki metric, are local or global Riemannian product manifolds.


References:

1.
M. F. Atiyah, R. Bott and A. Shapiro, Clifford modules, Topology 3, Suppl. 1 (1964), 3-38. MR 29:5250

2.
J. Berndt, E. Boeckx, P. Nagy and L. Vanhecke, Geodesics on the unit tangent bundle, preprint, 2001.

3.
J. Berndt, F. Tricerri and L. Vanhecke, Generalized Heisenberg groups and Damek-Ricci harmonic spaces, Lecture Notes in Math. 1598, Springer-Verlag, Berlin, Heidelberg, New York, 1995. MR 97a:53068

4.
E. Boeckx and G. Calvaruso, When is the unit tangent sphere bundle semi-symmetric?, preprint, 2002.

5.
E. Boeckx and L. Vanhecke, Characteristic reflections on unit tangent sphere bundles, Houston J. Math. 23 (1997), 427-448. MR 2000e:53052

6.
E. Boeckx and L. Vanhecke, Curvature homogeneous unit tangent sphere bundles, Publ. Math. Debrecen 53 (1998), 389-413. MR 2000d:53080

7.
E. Boeckx and L. Vanhecke, Harmonic and minimal vector fields on tangent and unit tangent bundles, Differential Geom. Appl. 13 (2000), 77-93. MR 2001f:53138

8.
G. de Rham, Sur la reductibilité d'un espace de Riemann, Comment. Math. Helv. 26 (1952), 328-344. MR 14:584a

9.
O. Kowalski and M. Sekizawa, On tangent sphere bundles with small or large constant radius, Ann. Global Anal. Geom. 18 (2000), 207-219. MR 2001i:53049

10.
O. Kowalski, M. Sekizawa and Z. Vlásek, Can tangent sphere bundles over Riemannian manifolds have strictly positive sectional curvature?, in: Global Differential Geometry: The Mathematical Legacy of Alfred Gray (eds. M. Fernández, J. A. Wolf), Contemp. Math. 288, Amer. Math. Soc., Providence, RI, 2001, 110-118. MR 2002i:53047


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Additional Information:

E. Boeckx
Affiliation: Department of Mathematics, Katholieke Universiteit Leuven, Celestijnenlaan 200B, 3001 Leuven, Belgium
Email: eric.boeckx@wis.kuleuven.ac.be

DOI: 10.1090/S0002-9947-03-03289-6
PII: S 0002-9947(03)03289-6
Keywords: Tangent sphere bundle, Sasaki metric, reducibility, Clifford structures, foliations
Received by editor(s): November 11, 2002
Received by editor(s) in revised form: January 21, 2003
Posted: March 14, 2003
Copyright of article: Copyright 2003, American Mathematical Society


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