[图书][B] Sobolev spaces on metric measure spaces

J Heinonen, P Koskela, N Shanmugalingam, JT Tyson - 2015 - books.google.com
Analysis on metric spaces emerged in the 1990s as an independent research field providing
a unified treatment of first-order analysis in diverse and potentially nonsmooth settings …

On the volume measure of non-smooth spaces with Ricci curvature bounded below

M Kell, A Mondino - arXiv preprint arXiv:1607.02036, 2016 - arxiv.org
We prove that, given an $ RCD^{*}(K, N) $-space $(X, d, m) $, then it is possible to $ m $-
essentially cover $ X $ by measurable subsets $(R_ {i}) _ {i\in\mathbb {N}} $ with the …

Structure of measures in Lipschitz differentiability spaces

D Bate - Journal of the American Mathematical Society, 2015 - ams.org
We prove the equivalence of two seemingly very different ways of generalising
Rademacher's theorem to metric measure spaces. One such generalisation is based upon …

Curvewise characterizations of minimal upper gradients and the construction of a Sobolev differential

S Eriksson-Bique, E Soultanis - arXiv preprint arXiv:2102.08097, 2021 - arxiv.org
We represent minimal upper gradients of Newtonian functions, in the range $1\le p<\infty $,
by maximal directional derivatives along" generic" curves passing through a given point …

[PDF][PDF] Differentiable structures on metric measure spaces: a primer

B Kleiner, J Mackay - arXiv preprint arXiv:1108.1324, 2011 - arxiv.org
arXiv:1108.1324v1 [math.MG] 5 Aug 2011 Page 1 arXiv:1108.1324v1 [math.MG] 5 Aug 2011
DIFFERENTIABLE STRUCTURES ON METRIC MEASURE SPACES: A PRIMER BRUCE …

[HTML][HTML] Derivations and Alberti representations

A Schioppa - Advances in Mathematics, 2016 - Elsevier
We relate generalized Lebesgue decompositions of measures in terms of curve fragments
(“Alberti representations”) and Weaver derivations. This correspondence leads to a …

Infinitesimal structure of differentiability spaces, and metric differentiation

J Cheeger, B Kleiner, A Schioppa - Analysis and Geometry in Metric …, 2016 - degruyter.com
We prove metric differentiation for differentiability spaces in the sense of Cheeger [10, 14,
27]. As corollarieswe give a new proof of one of the main results of [14], a proof that the Lip …

Analysis and geometry of the measurable Riemannian structure on the Sierpinski gasket

N Kajino - Contemp. Math, 2013 - books.google.com
This expository article is devoted to a survey of existent results concerning the measurable
Riemannian structure on the Sierpinski gasket and to a brief account of the author's recent …

Characterizing spaces satisfying Poincaré inequalities and applications to differentiability

S Eriksson-Bique - Geometric and Functional Analysis, 2019 - Springer
We characterize complete RNP-differentiability spaces as those spaces which are rectifiable
in terms of doubling metric measure spaces satisfying some local (1, p)-Poincaré …

Differentiability and Poincaré-type inequalities in metric measure spaces

D Bate, S Li - Advances in Mathematics, 2018 - Elsevier
We demonstrate the necessity of a Poincaré type inequality for those metric measure spaces
that satisfy Cheeger's generalization of Rademacher's theorem for all Lipschitz functions …