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arXiv · 2503.03017

Perelman's entropy and heat kernel bounds on RCD spaces

Camillo Brena
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Abstract

We study Perelman's W-entropy functional on finite-dimensional RCD spaces, a synthetic generalization of spaces with Bakry-Émery Ricci curvature bounded from below. We rigorously justify the formula for the time derivative of the W-entropy and derive its monotonicity and rigidity properties. Additionally, we establish bounds for solutions of the heat equation, which are of independent interest.

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Camillo Brena. 2025-03-04. Perelman's entropy and heat kernel bounds on RCD spaces. https://arxiv.org/abs/2503.03017

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