Calculus of Variations and Geometric Measure Theory
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E. Bruè - Q. Deng - D. Semola

Improved regularity estimates for Lagrangian flows on RCD(K,N) spaces

created by bruè on 07 Apr 2021

[BibTeX]

Preprint

Inserted: 7 apr 2021
Last Updated: 7 apr 2021

Year: 2021

Abstract:

This paper gives a contribution to the study of regularity of Lagrangian flows on non-smooth spaces with lower Ricci curvature bounds. The main novelties with respect to the existing literature are the better behaviour with respect to time and the local nature of the regularity estimates. These are obtained sharpening previous results of the first and third authors, in combination with some tools recently developed by the second author (adapting to the synthetic framework ideas introduced in Colding-Naber12). The estimates are suitable for applications to the fine study of RCD spaces and play a central role in the construction of a parallel transport in this setting.


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