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Gradient bounds and Liouville property for a class of hypoelliptic diffusion via coupling

  • Bin Qian ORCID logo EMAIL logo and Beibei Zhang
Published/Copyright: November 14, 2024

Abstract

In this paper, we obtain the reverse Bakry–Émery-type estimates for a class of hypoelliptic diffusion operator by coupling method. The (right and reverse) Poincaré inequalities and the (right and reverse) logarithmic Sobolev inequalities are presented as consequences of such estimates. Wang–Harnack inequality, Hamilton’s gradient estimate and Liouville property are also presented by the reverse logarithmic Sobolev inequality.

MSC 2020: 60J60; 35H10

Communicated by Maria Gordina


Award Identifier / Grant number: 11671076

Funding statement: Sponsored by the National Natural Science Foundation of China (No. 11671076).

Acknowledgements

The authors would like to express sincere thanks to the anonymous referee for his/her value suggestion and comment which greatly improve the quality of the paper.

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Received: 2023-11-15
Revised: 2024-10-07
Published Online: 2024-11-14
Published in Print: 2025-06-01

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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