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arXiv · 2207.13197

Scalar curvature, entropy, and generalized Ricci flow

Jeffrey Streets
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Abstract

We derive a family of weighted scalar curvature monotonicity formulas for generalized Ricci flow, involving an auxiliary dilaton field evolving by a certain reaction-diffusion equation motivated by renormalization group flow. These scalar curvature monotonicities are dual to a new family of Perelman-type energy and entropy monotonicity formulas by coupling to a solution of the associated weighted conjugate heat equation. In the setting of Ricci flow, we further obtain a new family of convex Nash entropies and pseudolocality principles.

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Jeffrey Streets. 2022-07-26. Scalar curvature, entropy, and generalized Ricci flow. https://arxiv.org/abs/2207.13197

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