Abstract
Themotivation of this paper is to study a second order elliptic operatorwhich appears naturally in Riemannian geometry, for instance in the study of hypersurfaces with constant r-mean curvature. We prove a generalizedBochner-type formula for such a kind of operators and as applicationswe obtain some sharp estimates for the first nonzero eigenvalues in two special cases. These results can be considered as generalizations of the Lichnerowicz-Obata Theorem.
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Corresponding author. Partially supported by CNPq and Fapeal of Brazil.
Partially supported by CNPq and Faperj of Brazil.
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Alencar, H., Neto, G.S. & Zhou, D. Eigenvalue estimates for a class of elliptic differential operators on compact manifolds. Bull Braz Math Soc, New Series 46, 491–514 (2015). https://doi.org/10.1007/s00574-015-0102-1
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DOI: https://doi.org/10.1007/s00574-015-0102-1