The aim of this note is to generalize to the class of non collapsed RCD(K, N) metric measure spaces the volume bound for the effective singular strata obtained by Cheeger and Naber for non collapsed Ricci limits in [13]. The proof, which is based on a quantitative differentiation argument, closely follows the original one. As a simple outcome we provide a volume estimate for the enlargement of Gigli-DePhilippis' boundary ([20, Remark 3.8]) of ncRCD(K, N) spaces.

Volume Bounds for the Quantitative Singular Strata of Non Collapsed RCD Metric Measure Spaces

Antonelli G.
;
Brue E.;Semola D.
2019

Abstract

The aim of this note is to generalize to the class of non collapsed RCD(K, N) metric measure spaces the volume bound for the effective singular strata obtained by Cheeger and Naber for non collapsed Ricci limits in [13]. The proof, which is based on a quantitative differentiation argument, closely follows the original one. As a simple outcome we provide a volume estimate for the enlargement of Gigli-DePhilippis' boundary ([20, Remark 3.8]) of ncRCD(K, N) spaces.
2019
Curvature-dimension condition; Non collapsed; Ricci limit space; Singular strata; Volume bounds
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/81587
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