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Gradient estimates,Harnack inequalities and estimates for heat kernels of the sum of squares of vector fields |
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| Authors: | Huai-Dong Cao Shing-Tung Yau |
| Institution: | (1) Department of Mathematics, Columbia University, 10027 New York, NY, USA;(2) Department of Mathematics, Harvard University, 02138 Cambridge, MA, USA |
| Abstract: | Research partially supported by NSF grant no. DMS-87-04209 and DMS-90-04062 |
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