Pith. sign in

REVIEW 3 cited by

Constancy of the dimension for RCD(K,N) spaces via regularity of Lagrangian flows

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1804.07128 v2 pith:J7BSH5ZL submitted 2018-04-19 math.MG

classification math.MG
keywords spacesregularitydimensionflowslagrangianresultabstractapplication
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
read the original abstract

We prove a regularity result for Lagrangian flows of Sobolev vector fields over RCD(K,N) metric measure spaces, regularity is understood with respect to a newly defined quasi-metric built from the Green function of the Laplacian. Its main application is that RCD(K,N) spaces have constant dimension. In this way we generalize to such abstract framework a result proved by Colding-Naber for Ricci limit spaces, introducing ingredients that are new even in the smooth setting.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. On the structure of RCD spaces with upper curvature bounds

    math.DG 2019-08 accept novelty 8.0 of 10

    Every RCD space with curvature bounded above is a topological manifold with boundary whose interior is the regular set, a smooth geodesically convex manifold.

  2. Rectifiability of the reduced boundary for sets of finite perimeter over RCD$(K,N)$ spaces

    math.MG 2019-09 conditional novelty 7.0 of 10

    In RCD(K,N) spaces, the reduced boundary of a set of finite perimeter has a unique Euclidean half-space tangent at almost every point and is rectifiable by bi-Lipschitz charts.

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

    math.DG 2025-05 reject novelty 5.0 of 10

    The author proves W-entropy dissipation and Shannon entropy power concavity on closed (K,n,N)-super Ricci flows over metric measure spaces, and connects lower-bounded W-entropy to volume non-collapsing on RCD(0,N) spaces.

Pith tools