Abstract
In this paper we give a proof of Lichnerowicz conjecture for compact simply connected manifolds which is intrinsic in the sense that it avoids thenice embeddings into eigenspaces of the Laplacian. Even if one wants to use these embeddings, this paper gives a more streamlined proof. As a byproduct, we get a simple criterion for a polynomial to be a Jacobi polynomial.
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References
Besse A L,Manifolds all of whose geodesies are closed (Berlin: Springer) (1978)
Birkhoff G and Rota G C,Ordinary differential equations (John Wiley and Sons) (1989)
Cheeger J and Ebin D,Comparison Theorems in Riemannian Geometry (North Holland) (1975)
Damek E and Ricci F, A class of nonsymmetric harmonic Riemmanian spaces,Bull. AMS 27 (1992) 139–142
Lichnerowicz A, Sur les espaces riemanniens complétement harmoniques,Bull. Soc. Math. France 72 (1944) 146–168
Obata M, Certain conditions for a Riemannian manifold to be isometric to a sphere,J. Math. Soc. Jpn. 14 (1962) 330–340
Ranjan A and Santhanam G, A generalisation of Obata’s theorem,J. Geom. Anal. 7 (1997) 357–375
Ranjan A and Santhanam G, The first eigenvalue ofP-manifolds,Osaka J. Math. 34 (1997) 821–842
Ranjan A and Santhanam G, Correction to “The first eigenvalue ofP-manifolds”, to appear inOsaka J. Math.
Ros A, Eigenvalue inequalities for minimal submanifolds andP-manifolds,Math. Z. 187 (1984) 393–404
Sakamoto K, Helical immersions into a unit sphere,Math. Ann. 261 (1982) 63–80.
Szabo Z I, The Lichnerowicz conjecture on harmonic manifolds,J. Diff. Geom. 31 (1990) 1–28
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Ranjan, A. An intrinsic approach to Lichnerowicz conjecture. Proc Math Sci 110, 27–34 (2000). https://doi.org/10.1007/BF02829478
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DOI: https://doi.org/10.1007/BF02829478