A NOTE ON GENERALIZED LICHNEROWICZ-OBATA THEOREMS FOR RIEMANNIAN FOLIATIONS Pak, Hong-Kyung; Park, Jeong-Hyeong;
Abstract
It was obtained in [5] generalized Lichnerowicz and Obata theorems for Riemannian foliations, which reduce to the results on Riemannian manifolds for the point foliations. Recently in [3], they studied a generalized Obata theorem for Riemannian foliations admitting transversal conformal fields. Each transversal conformal field is a -automorphism with in the sense of [8]. In the present paper, we extend certain results established in [3] and study Riemannian foliations admitting -automorphisms with .
Keywords
Riemannian foliation;generalized Lichnerowicz-Obata theorem;-automorphism;transversally Einstein foliation;
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2.
A Lower Bound on the Spectrum of the Sublaplacian, The Journal of Geometric Analysis, 2015, 25, 3, 1492
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