Paper · Jul 6, 2017

Hamilton differential Harnack inequality and -entropy for Witten Laplacian on Riemannian manifolds

Songzi Li, Xiang-Dong Li

As on arXiv

Abstract

In this paper, we prove the Hamilton differential Harnack inequality for positive solutions to the heat equation of the Witten Laplacian on complete Riemannian manifolds with the -condition, where and are two constants. Moreover, we introduce the -entropy and prove the -entropy formula for the fundamental solution of the Witten Laplacian on complete Riemannian manifolds with the -condition and on compact manifolds equipped with -super Ricci flows.

Submitted
Jul 6, 2017
Last revised
Oct 10, 2017 (v2)
Subjects
math.DG

Comments: To appear in Journal of Functional Analysis. This paper is an improved version of a part of our previous preprint [14] (arxiv:1412.7034, version1 (22 December 2014) and version 2 (7 February 2016))

Its neighbourhood

Connected papers

The 8 papers on this site closest to this one, judged by the topics they share, the words and phrases in their titles and abstracts, and their authors. They are not its citations, but a map of the work around it. Papers here go back to 2016, plus the canon.

Connected papers This paper in the centre and the 8 papers closest to it around it, in date order clockwise from the top. The closer a paper sits to the centre, the stronger the connection. This paper On Harnack inequalities for Witten Laplacian on Riemannian manifolds with super Ricci flows (Songzi Li and Xiang-Dong Li, 2017)1Li 2017 W-entropy, super Perelman Ricci flows and (K, m)-Ricci solitons (Songzi Li and Xiang-Dong Li, 2017)2Li 2017 W-entropy formulas on super Ricci flows and Langevin deformation on Wasserstein space over Riemannian manifolds (Songzi Li and Xiang-Dong Li, 2017)3Li 2017 New differential Harnack inequalities for nonlinear heat equations (Jia-Yong Wu, 2018)8Wu 2018 Differential Harnack inequalities via Concavity of the arrival time (Theodora Bourni and Mat Langford, 2019)7Bourni 2019 On the Shannon entropy power on Riemannian manifolds and Ricci flow (S. Li and X. -D. Li, 2020)4Li 2020 On Perelman's W-entropy and Shannon entropy power for super Ricci flows on metric measure spaces (Xiang-Dong Li, 2025)5Li 2025 Harnack Inequality for f-Mean Curvature Flow (Xiang-Dong Li and Qi Yan, 2025)6Li 2025
Closer to the centre: more closely connected. Clockwise from the top: oldest to newest. Ricci flowWider flowsalso connected to each other
  1. On Harnack inequalities for Witten Laplacian on Riemannian manifolds with super Ricci flows

    Songzi Li and Xiang-Dong Li

    Topics Harnack inequalities, Weak & singular flows · Same authors Songzi Li, Xiang-Dong Li · Shared terms “Witten Laplacian”, “super Ricci”, “Riemannian manifold”

  2. -entropy, super Perelman Ricci flows and -Ricci solitons

    Songzi Li and Xiang-Dong Li

    Topics Harnack inequalities, Weak & singular flows · Same authors Songzi Li, Xiang-Dong Li · Shared terms “Witten Laplacian”, “complete Riemannian”, “heat equation”

  3. -entropy formulas on super Ricci flows and Langevin deformation on Wasserstein space over Riemannian manifolds

    Songzi Li and Xiang-Dong Li

    Topics Weak & singular flows · Same authors Songzi Li, Xiang-Dong Li · Shared terms “Witten Laplacian”, “entropy formula”, “super Ricci”

  4. On the Shannon entropy power on Riemannian manifolds and Ricci flow

    S. Li and X. -D. Li

    Topics Weak & singular flows · Same authors Songzi Li, Xiang-Dong Li · Shared terms “Witten Laplacian”, “complete Riemannian”, “Riemannian manifold”

  5. On Perelman's -entropy and Shannon entropy power for super Ricci flows on metric measure spaces

    Xiang-Dong Li

    Topics Harnack inequalities, Weak & singular flows · Same author Xiang-Dong Li · Shared terms “super Ricci”, “entropy formula”, “Hamilton”

  6. Harnack Inequality for -Mean Curvature Flow

    Xiang-Dong Li and Qi YanWider flows

    Topics Harnack inequalities · Same author Xiang-Dong Li · Shared terms “Hamilton”

  7. Differential Harnack inequalities via Concavity of the arrival time

    Theodora Bourni and Mat LangfordWider flows

    Topics Harnack inequalities, Weak & singular flows · Shared terms “differential Harnack”, “Hamilton differential”

  8. New differential Harnack inequalities for nonlinear heat equations

    Jia-Yong Wu

    Topics Harnack inequalities · Shared terms “differential Harnack”, “heat equation”

Read around it

Background reading

The guides for the topics of this paper: what each idea is, why it matters, and the papers to read first.

In the guidebook

  1. 6D.5
    Diffusions on Manifolds and CurvatureBook 6D · Diffusions, Finance and Computation

    Brownian motion on a Riemannian manifold, the Bakry–Émery calculus, curvature-dimension inequalities, gradient estimates and log-Sobolev, coupling, and Brownian motion along a Ricci flow.

  2. 11B.2
    Ancient Solutions and the Harnack InequalityBook 11B · Solitons, Compactness and Singularities

    Comparing curvature across space and time.

  3. 12A.6
    𝓛-Geodesics and the Variational FormulasBook 12A · Entropy and Noncollapsing

    Perelman's §7.1 derived line by line: the first and second variation of 𝓛-length, 𝓛-Jacobi fields, adapted fields, Hamilton's Harnack expressions, and the differential inequalities for the reduced distance.