Mathematics – Differential Geometry
Scientific paper
2011-09-22
Mathematics
Differential Geometry
Some comments are added and references are revised
Scientific paper
In this paper, we derive a gradient estimate for the linear combinations of
eigenforms of the Hodge Laplacian on a closed manifold. The estimate is given
in terms of the dimension, volume, diameter and curvature bound of the
manifold. As an application, we obtain directly a sharp estimate for the heat
kernel of the Hodge Laplacian.
Wang Jiaping
Zhou Linfeng
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