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On the gradient estimate of Cheng and Yau


Author: Ovidiu Munteanu
Journal: Proc. Amer. Math. Soc. 140 (2012), 1437-1443
MSC (2010): Primary 53C21; Secondary 58J05
DOI: https://doi.org/10.1090/S0002-9939-2011-11304-2
Published electronically: September 1, 2011
MathSciNet review: 2869128
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Abstract: We improve the well-known local gradient estimate of Cheng and Yau in the case when the Ricci curvature has a negative lower bound.


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References
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Additional Information

Ovidiu Munteanu
Affiliation: Department of Mathematics, Columbia University, New York, New York 10027
MR Author ID: 698338
Email: omuntean@math.columbia.edu

Received by editor(s): December 28, 2010
Published electronically: September 1, 2011
Additional Notes: The author’s research was partially supported by NSF grant No. DMS-1005484
Communicated by: Michael Wolf
Article copyright: © Copyright 2011 American Mathematical Society