|
The normal homogeneous space has positive sectional curvature
Author(s):
Burkhard
Wilking
Journal:
Proc. Amer. Math. Soc.
127
(1999),
1191-1194.
MSC (1991):
Primary 53C30, 53C25
MathSciNet review:
1469441
Retrieve article in:
PDF
This article is available free of charge
Abstract |
References |
Similar articles |
Additional information
Abstract:
We give a new description of the positively curved seven-dimensional Aloff-Wallach spaces . In particular, this description exhibits as a normal homogeneous space, although it does not occur in Berger's classification (1961).
References:
- [AW1972]
- S. Aloff & N. Wallach, An infinite family of 7-manifolds admitting positively curved Riemannian structures, Bull. Amer. Math. Soc. 81(1975), 93-97. MR 51:6851
- [1975]
- L. Bérard Bergery, Sur certaines fibrations d'espaces homogènes riemanniens, Compositio Mathematica 30 (1975), 43-61. MR 51:6659
- [1976]
- L. Bérard Bergery, Les variétés riemanniennes homogènes simplement connexes de dimension impaire à courbure strictement positive, J. Math. pure et appl. 55(1976), 47-68. MR 54:6032
- [1961]
- M. Berger, Les variétés riemanniennes homogènes normales simplement connexes à Courbure strictement positive, Ann. Scuola Norm. Sup. Pisa 15(1961), 179-246. MR 24:A2919
- [1966]
- H. Eliasson, Die Krümmung des Raumes
von Berger, Math. Annalen 164 (1966), 317-323. MR 33:4866 - [1971]
- E. Heintze, The curvature of
, Invent. Math. 13 (1971), 205-212. MR 45:2610 - [1997]
- T. Püttmann, Pinching constants of odd-dimensional homogeneous spaces, preprint (1997).
- [W1972]
- N. Wallach, Compact homogeneous Riemannian manifolds with strictly positive curvature, Ann. of Math. 96 (1972), 277-295. MR 46:6243
Similar Articles:
Retrieve articles in Proceedings of the American Mathematical
Society
with
MSC (1991):
53C30, 53C25
Retrieve articles in all Journals with
MSC (1991):
53C30, 53C25
Additional Information:
Burkhard
Wilking
Affiliation:
Westfälische Wilhelms--Universität Einsteinstr.~62 48149 Münster Germany
Email:
wilking@math.uni-muenster.de
DOI:
10.1090/S0002-9939-99-04613-4
PII:
S 0002-9939(99)04613-4
Keywords:
Normal homogeneous spaces,
positive sectional curvature
Received by editor(s):
March 11, 1997
Received by editor(s) in revised form:
July 9, 1997
Communicated by:
Christopher Croke
Copyright of article:
Copyright
1999,
American Mathematical Society
|