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Gradient estimates for harmonic functions on regular domains in Riemannian manifolds. (English) Zbl 0914.58042
A version of the Bismut-Elworthy formula is applied to obtain gradient estimates for harmonic functions on regular domains in Riemannian manifolds. This probabilistic method allows the authors to improve some known estimates.

##### MSC:
 58J65 Diffusion processes and stochastic analysis on manifolds 60J65 Brownian motion
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##### References:
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