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Local Hamilton type Gradient Estimates and Harnack Inequalities for Nonlinear Parabolic Equations on Riemannian Manifolds

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Abstract

In this paper, we prove a local Hamilton type gradient estimate for positive solution of the nonlinear parabolic equation

$${u_t}(x,t) = \Delta u(x,t) + au(x,t)\ln \,u(x,t) + b{u^\alpha }(x,t),$$

on M × (−∞, ∞) with αR, where a and b are constants. As application, the Harnack inequalities are derived.

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Correspondence to Wen Wang.

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The authors declare no conflict of interest.

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The project is supported by the National Natural Science Foundation of China (No. 12271039) and the Natural Science Foundation of universities of Anhui Province of China (Grant Nos. KJ2021A0927,2023AH040161).

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Wang, W., Xie, Dp. & Zhou, H. Local Hamilton type Gradient Estimates and Harnack Inequalities for Nonlinear Parabolic Equations on Riemannian Manifolds. Acta Math. Appl. Sin. Engl. Ser. 40, 539–546 (2024). https://doi.org/10.1007/s10255-024-1041-7

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  • DOI: https://doi.org/10.1007/s10255-024-1041-7

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