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Conjugate radius and isometry group of a manifold with negative Ricci curvature

Published online by Cambridge University Press:  17 April 2009

Seong-Hun Paeng
Affiliation:
Korea Institute for Advanced Study, 207–43 Cheongryangri-Dong, Dongdaemun-Gu, Seoul 130–012, Korea e-mail: shpaeng@kias.re.kr
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Abstract

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It is known that the order of the isometry group on a compact Riemannian manifold with negative Ricci curvature is finite. We show by local nilpotent structures that a bound on the orders of the isometry groups exists depending only on the Ricci curvature, the conjugate radius and the diameter.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1999

References

[1]Anderson, M.T., ‘Convergence and rigidity of manifolds under Ricci curvature bounds’, Invent. Math. 102 (1990), 429445.CrossRefGoogle Scholar
[2]Anderson, M.T. and Cheeger, J., ‘C α-compactness for manifolds with Ricci curvature and injectivity radius bounded below’, J. Differential Geom. 35 (1992), 265281.CrossRefGoogle Scholar
[3]Cheeger, J., Colding, T.H., ‘Lower bounds on Ricci curvature and the almost rigidity of warped products’, Ann. Math. 144 (1996), 189237.CrossRefGoogle Scholar
[4]Cheeger, J. and Ebin, D.G., Comparison theorems in Riemannian geometry (North-Holland Publishing Co, Amsterdam, 1975).Google Scholar
[5]Dai, X., Shen, Z. and Wei, G., ‘Negative Ricci curvature and isometry group’, Duke Math. J. 76 (1994), 5973.CrossRefGoogle Scholar
[6]Katsuda, A., ‘The isometry groups of compact manifolds with negative Ricci curvature’, Proc. Amer. Math. Soc. 104 (1988), 587588.CrossRefGoogle Scholar
[7]Kobayashi, S., Transformation groups in Differential geometry (Springer-Verlag, Berlin, Heidelberg, New York, 1972).CrossRefGoogle Scholar
[8]Paeng, S.-H., ‘A generalization of Gromov's almost flat manifolds and topological entropy for geodesic flows’, (preprint).Google Scholar
[9]Wei, G., ‘Ricci curvature and Betti number’, J. Geom. Anal. (to appear).Google Scholar
[10]Yamaguchi, T., ‘The isometry groups of manifolds of nonpositive curvature with finite volume’, Math. Z. 189 (1985), 185192.CrossRefGoogle Scholar