Results 41 to 50 of about 339,707 (116)

Carnot rectifiability and Alberti representations

open access: yesProceedings of the London Mathematical Society, Volume 130, Issue 1, January 2025.
Abstract A metric measure space is said to be Carnot‐rectifiable if it can be covered up to a null set by countably many bi‐Lipschitz images of compact sets of a fixed Carnot group. In this paper, we give several characterisations of such notion of rectifiability both in terms of Alberti representations of the measure and in terms of differentiability ...
G. Antonelli, E. Le Donne, A. Merlo
wiley   +1 more source

A Proof of Smarandache-Pătraşcu’s Theorem using Barycentric Coordinates [PDF]

open access: yes, 2010
Proving the Smarandache–Pătraşcu’s Theorem in relation to the inscribed orthohomological triangles using the barycentric ...
Coandă, Claudiu
core   +1 more source

Bayesian social aggregation with almost‐objective uncertainty

open access: yesTheoretical Economics, Volume 19, Issue 3, Page 1351-1398, July 2024.
We consider collective decisions under uncertainty, when agents have generalized Hurwicz preferences, a broad class allowing many different ambiguity attitudes, including subjective expected utility preferences. We consider sequences of acts that are “almost‐objectively uncertain” in the sense that asymptotically, all agents almost agree about the ...
Marcus Pivato, Élise Flore Tchouante
wiley   +1 more source

The Lusin Theorem and Horizontal Graphs in the Heisenberg Group

open access: yesAnalysis and Geometry in Metric Spaces, 2013
Abstract In this paper we prove that every collection of measurable functions fα , |α| = m, coincides a.e. withmth order derivatives of a function g ∈ Cm−1 whose derivatives of order m − 1 may have any modulus of continuity weaker than that of a Lipschitz function.
Hajłasz Piotr, Mirra Jacob
openaire   +4 more sources

A Quantitative Lusin Theorem for Functions in BV [PDF]

open access: yes, 2015
We extend to the BV case a measure theoretic lemma previously proved by DiBenedetto et al. (Atti Accad. Naz. Lincei Cl. Sci. Mat. Appl. 9, 223–225, 2006) in W loc 1, 1. It states that if the set where u is positive occupies a sizable portion of an open set E then the set where u is positive clusters about at least one point of E. In this note we follow
Telcs, Andras, VESPRI, VINCENZO
openaire   +2 more sources

On the local-indicability cohen–lyndon theorem

open access: yes, 2011
For a group H and a subset X of H, we let HX denote the set {hxh?1 | h ? H, x ? X}, and when X is a free-generating set of H, we say that the set HX is a Whitehead subset of H. For a group F and an element r of F, we say that r is Cohen–Lyndon aspherical
Antolin, Yago   +5 more
core   +1 more source

The Malgrange-Ehrenpreis Theorem [PDF]

open access: yes, 2012
This paper collect of some proofs of the Malgrange-Ehrenpreis Theorem, which asserts the existence of fundamental solutions of linear partial differential operator with constant coefficients.Ribera Puchades, JM. (2011).
Ribera Puchades, Juan Miguel
core  

Lusin type theorems for Radon measures [PDF]

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2017
We add to the literature the following observation. If \mu is a singular measure on \mathbb{R}^n which assigns measure zero to every porous set and
openaire   +5 more sources

ON LUSIN'S THEOREM IN THE ASPECT OF SMALL SYSTEMS

open access: yesDemonstratio Mathematica, 1995
Let \(S\) be a \(\sigma\)-algebra of subsets of a set \(X\). By a small system a sequence of families \((N_n)_n\subset S\) satisfying some axioms is understood. If \(m\) is a positive measure, then the family \(N_n\) of all sets of a measure less than \(1/n\) can serve as an example.
openaire   +1 more source

The Lusin-Privalov theorem for subharmonic functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1996
This paper establishes a generalization of the Lusin-Privalov radial uniqueness theorem which applies to subharmonic functions in all dimensions. In particular, it answers a question of Rippon by showing that no subharmonic function on the upper half-space can have normal limit
openaire   +2 more sources

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