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Related papers: On Choquet integrals and pointwise estimates

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We consider integrals in the sense of Choquet with respect to the $\delta$-dimensional Hausdorff content for continuously differentiable functions defined on open, connected sets in the Euclidean $n$-space, $n\geq 2$, $0<\delta\le n$. In…

Analysis of PDEs · Mathematics 2024-09-12 Petteri Harjulehto , Ritva Hurri-Syrjänen

We consider integral inequalities in the sense of Choquet with respect to the Hausdorff content $\mathcal{H}_\infty^{\delta}$. In particular, if $\Omega$ is a bounded John domain in $\mathbb{R}^n$, $n\geq 2$, and $0 <\delta \le n$, we prove…

Functional Analysis · Mathematics 2022-12-23 P. Harjulehto , R. Hurri-Syrjänen

We introduce Riesz potentials for non-Lebesgue measurable functions by taking the integrals in the sense of Choquet with respect to Hausdorff content and prove boundedness results for these operators. Some earlier results are recovered or…

Functional Analysis · Mathematics 2024-05-21 Petteri Harjulehto , Ritva Hurri-Syrjänen

Let $\Omega$ be a bounded John domain in $\mathbb R^n$ with $n\ge 2$, and let $\mathcal{H}_{\infty }^{\delta}$ denote the Hausdorff content of dimension $\delta\in (0,n]$. In this article, the authors prove the Poincar\'e and the…

Functional Analysis · Mathematics 2024-12-20 Long Huang , Yuanshou Cao , Dachun Yang , Ciqiang Zhuo

We consider Choquet integrals with respect to dyadic Hausdorff content of non-negative functions which are not necessarily Lebesgue measurable. We study the theory of Lebesgue points. The studies yield convergence results and also a density…

Functional Analysis · Mathematics 2025-03-10 Petteri Harjulehto , Ritva Hurri-Syrjänen

We study Poincare-Sobolev type inequalities for compactly supported smooth functions which are defined in the Euclidean $n$-space and whose absolute value of gradient are Choquet $\delta /n$-integrable with respect to the…

Analysis of PDEs · Mathematics 2026-04-16 Petteri Harjulehto , Ritva Hurri-Syrjänen

In this note the Choquet type operators are introduced, in connection to Choquet's theory of integrability with respect to a not necessarily additive set function. Based on their properties, a quantitative estimate for the nonlinear…

Classical Analysis and ODEs · Mathematics 2021-04-14 Sorin G. Gal , Constantin P. Niculescu

In this article we study some new pointwise inequalities between rough singular integral operators, weighted maximal functions of the gradient and weighted Morrey spaces. These pointwise estimates will naturally lead us to a new class of…

Functional Analysis · Mathematics 2026-01-16 Diego Chamorro , Anca-Nicoleta Marcoci , Liviu-Gabriel Marcoci

We study the moments and the distribution of the discrete Choquet integral when regarded as a real function of a random sample drawn from a continuous distribution. Since the discrete Choquet integral includes weighted arithmetic means,…

Probability · Mathematics 2015-05-13 Ivan Kojadinovic , Jean-Luc Marichal

This article discusses several matters related to Sobolev, Poincare, and isoperimetric inequalities in various settings.

Classical Analysis and ODEs · Mathematics 2007-05-23 Stephen Semmes

We find best constants in several dilation invariant integral inequalities involving derivatives of functions. Some of these inequalities are new and some were known without best constants. The contents: 1. Estimate for a quadratic form of…

Analysis of PDEs · Mathematics 2008-03-10 V. Maz'ya , T. Shaposhnikova

We establish sharp pointwise inequalities for the Riesz potential and its gradient in $\mathbb{R}^{n}$ and indicate their usefulness for potential analysis, moment theory and other applications.

Functional Analysis · Mathematics 2023-12-06 Vladimir G. Tkachev

The present paper develops two concepts of pointwise differentiability of higher order for arbitrary subsets of Euclidean space defined by comparing their distance functions to those of smooth submanifolds. Results include that…

Differential Geometry · Mathematics 2019-04-11 Ulrich Menne

We study weak-type estimates and exponential integrability for the variable order Riesz potential. As an application we prove an exponential integrability result with respect to the Hausdorff content for functions from variable exponent…

Functional Analysis · Mathematics 2021-11-22 Petteri Harjulehto , Ritva Hurri-Syrjänen

The Riesz-Sobolev inequality provides an upper bound, in integral form, for the convolution of indicator functions of subsets of Euclidean space. We formulate and prove a sharper form of the inequality. This can be equivalently phrased as a…

Classical Analysis and ODEs · Mathematics 2017-06-08 Michael Christ

We study in this article a new pointwise estimate for ''rough'' singular integral operators. From this pointwise estimate we will derive Sobolev type inequalities in a variety of functional spaces.

Functional Analysis · Mathematics 2026-01-14 Diego Chamorro , Anca-Nicoleta Marcoci , Liviu-Gabriel Marcoci

The integral representation of Choquet operators defined on a space C(X) is established by using the Choquet-Bochner integral of a real-valued function with respect to a vector capacity.

Functional Analysis · Mathematics 2021-04-14 Sorin G. Gal , Constantin P. Niculescu

For distributions, we build a theory of higher order pointwise differentiability comprising, for order zero, {\L}ojasiewicz's notion of point value. Results include Borel regularity of differentials, higher order rectifiability of the…

Functional Analysis · Mathematics 2021-03-24 Ulrich Menne

We study the extension of Hill's method of infinite determinants to the case of integro-differential equations with periodic coefficients and kernels. We develop the analytical theory of such methods, and we obtain certain qualitative…

Classical Analysis and ODEs · Mathematics 2012-05-25 S. A. Belbas

We consider nonlocal equations of order larger than one with measure data and prove gradient regularity in Sobolev and H\"older spaces as well as pointwise bounds of the gradient in terms of Riesz potentials, leading to fine regularity…

Analysis of PDEs · Mathematics 2024-10-29 Tuomo Kuusi , Simon Nowak , Yannick Sire
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