Uniformly rectifiable metric spaces: Lipschitz images, bi-lateral weak geometric lemma and corona decompositions

D Bate, M Hyde, R Schul - arXiv preprint arXiv:2306.12933, 2023 - arxiv.org
In their 1991 and 1993 foundational monographs, David and Semmes characterized uniform
rectifiability for subsets of Euclidean space in a multitude of geometric and analytic ways …

Density of continuous functions in Sobolev spaces with applications to capacity

S Eriksson-Bique, P Poggi-Corradini - Transactions of the American …, 2024 - ams.org
We show that capacity can be computed with locally Lipschitz functions in locally complete
and separable metric spaces. Further, we show that if $(X, d,\mu) $ is a locally complete and …

Intrinsically H\" older sections in metric spaces

D Di Donato - arXiv preprint arXiv:2205.02688, 2022 - arxiv.org
We introduce a notion of intrinsically H\" older graphs in metric spaces. Following a recent
paper of Le Donne and the author, we prove some relevant results as the Ascoli-Arzel\a …

On various Carleson-type geometric lemmas and uniform rectifiability in metric spaces

K Fässler, IY Violo - arXiv preprint arXiv:2310.10519, 2023 - arxiv.org
We introduce new flatness coefficients, which we call\emph {$\iota $-numbers}, for Ahlfors
regular sets in metric spaces. We investigate the relation between Carleson-type geometric …

[PDF][PDF] The Rank-One Theorem on spaces

G Antonelli, C Brena, E Pasqualetto - arXiv preprint arXiv:2204.04921, 2022 - arxiv.org
arXiv:2204.04921v1 [math.MG] 11 Apr 2022 Page 1 arXiv:2204.04921v1 [math.MG] 11 Apr
2022 THE RANK-ONE THEOREM ON RCD SPACES GIOACCHINO ANTONELLI, CAMILLO …

On 1-regular and 1-uniform metric measure spaces

D Bate - arXiv preprint arXiv:2501.05920, 2025 - arxiv.org
A metric measure space $(X,\mu) $ is 1-regular if\[0<\lim_ {r\to 0}\frac {\mu (B (x, r))}{r}<\infty\]
for $\mu $-ae $ x\in X $. We give a complete geometric characterisation of the rectifiable and …

Failure of the curvature-dimension condition in sub-Finsler manifolds

M Magnabosco, T Rossi - arXiv preprint arXiv:2307.01820, 2023 - arxiv.org
The Lott-Sturm-Villani curvature-dimension condition $\mathsf {CD}(K, N) $ provides a
synthetic notion for a metric measure space to have curvature bounded from below by $ K …

Identifying 1-rectifiable measures in Carnot groups

M Badger, S Li, S Zimmerman - Analysis and Geometry in Metric …, 2023 - degruyter.com
We continue to develop a program in geometric measure theory that seeks to identify how
measures in a space interact with canonical families of sets in the space. In particular …

Density of continuous functions in Sobolev spaces with applications to capacity

S Eriksson-Bique, P Poggi-Corradini - arXiv preprint arXiv:2303.00649, 2023 - arxiv.org
We show that capacity can be computed with locally Lipschitz functions in locally complete
and separable metric spaces. Further, we show that if $(X, d,\mu) $ is a locally complete and …

Carnot rectifiability and Alberti representations

G Antonelli, EL Donne, A Merlo - arXiv preprint arXiv:2302.01376, 2023 - arxiv.org
This paper introduces and studies the analogue of the notion of Lipschitz differentiability
space by Cheeger, using Carnot groups and Pansu derivatives as models. We call such …