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Related papers: Triebel-Lizorkin spaces and expansive matrices

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An RD-space $\mathcal X$ is a space of homogeneous type in the sense of Coifman and Weiss with the additional property that a reverse doubling property holds in $\mathcal X$. In this paper, the authors first give several equivalent…

Classical Analysis and ODEs · Mathematics 2010-07-20 Dachun Yang , Yuan Zhou

We construct smooth localized orthonormal bases compatible with homogeneous mixed-norm Triebel-Lizorkin spaces in an anisotropic setting on $\bR^d$. The construction is based on tensor products of so-called univariate brushlet functions…

Functional Analysis · Mathematics 2022-06-09 Morten Nielsen

We establish necessary and sufficient conditions guaranteeing compactness of embeddings of fractional Sobolev spaces, Besov spaces, and Triebel-Lizorkin spaces, in the general context of quasi-metric-measure spaces. Although stated in the…

Functional Analysis · Mathematics 2024-06-27 Ryan Alvarado , Przemysław Górka , Artur Słabuszewski

In this article, using growth functions we introduce generalized matrix-weighted Besov-Triebel-Lizorkin-type spaces with matrix $\mathcal{A}_{\infty}$ weights. We first characterize these spaces, respectively, in terms of the…

Functional Analysis · Mathematics 2025-05-06 Fan Bu , Dachun Yang , Wen Yuan , Mingdong Zhang

Homogeneous Besov and Triebel-Lizorkin spaces associated with multi-dimensional Laguerre function expansions of Hermite type with index $\alpha \in [-1/2,\infty)^d\backslash (-1/2,1/2)^d$, $d\geq 1$, are defined and investigated. To achieve…

Classical Analysis and ODEs · Mathematics 2018-09-24 Paweł Plewa

In this paper we study Triebel-Lizorkin-type spaces with variable smoothness and integrability. We show that our space is well-defined, i.e., independent of the choice of basis functions and we obtain their atomic characterization. Moreover…

Functional Analysis · Mathematics 2016-01-14 Douadi Drihem

This paper provides equivalence characterizations of homogeneous Triebel-Lizorkin and Besov-Lipschitz spaces, denoted by $\dot{F}^s_{p,q}(\mathbb{R}^n)$ and $\dot{B}^s_{p,q}(\mathbb{R}^n)$ respectively, in terms of maximal functions of the…

Classical Analysis and ODEs · Mathematics 2023-03-15 Lifeng Wang

In this article, the authors introduce the spaces of Lipschitz type on spaces of homogeneous type in the sense of Coifman and Weiss, and discuss their relations with Besov and Triebel-Lizorkin spaces. As an application, the authors…

Functional Analysis · Mathematics 2021-03-04 Fan Wang , Ziyi He , Dachun Yang , Wen Yuan

In this paper we analyse the structure of the spaces of smooth type functions, generated by elements of arbitrary Hilbert spaces, as a continuation of the research in our previous papers in this series. We prove that these spaces are…

Functional Analysis · Mathematics 2018-12-05 Aparajita Dasgupta , Michael Ruzhansky

We introduce the homogeneous (inhomogeneous) matrix weighted Bourgain-Morrey Triebel-Lizorkin spaces and obtain their equivalent norms. We also obtain their characterizations by Peetre type maximal functions, Lusin-area function,…

Functional Analysis · Mathematics 2025-12-25 Tengfei Bai , Pengfei Guo , Jingshi Xu

We deduce an extension theorem for the so-called Sobolev-Grand Lebesgue Spaces defined on the suitable subsets of the whole finite-dimensional Euclidean space, and estimate the norms of correspondent extension operator, which may be choosed…

Functional Analysis · Mathematics 2022-06-02 M. R. Formica , E. Ostrovsky , L. Sirota

We deal with homogeneous Besov and Triebel-Lizorkin spaces in the setting of a doubling metric measure space in the presence of a non-negative self-adjoint operator whose heat kernel has Gaussian localization and the Markov property. The…

Classical Analysis and ODEs · Mathematics 2018-05-04 Athanasios G. Georgiadis , Gerard Kerkyacharian , George Kyriazis , Pencho Petrushev

The subject is traces of Sobolev spaces with mixed Lebesgue norms on Euclidean space. Specifically, restrictions to the hyperplanes given by the first and last coordinates are applied to functions belonging to quasi-homogeneous, mixed-norm…

Analysis of PDEs · Mathematics 2017-02-03 Jon Johnsen , Winfried Sickel

We establish trace theorems for function spaces defined on general Ahlfors regular metric spaces $Z$. The results cover the Triebel-Lizorkin spaces and the Besov spaces for smoothness indices $s<1,$ as well as the first order…

Classical Analysis and ODEs · Mathematics 2016-06-29 Eero Saksman , Tomás Soto

This article gives general results on invariance of anisotropic Lizorkin--Triebel spaces with mixed norms under coordinate transformations on Euclidean space, open sets and cylindrical domains.

Analysis of PDEs · Mathematics 2016-08-17 Jon Johnsen , Sabrina Munch Hansen , Winfried Sickel

We shall compare isotropic Lizorkin-Triebel spaces with their counterparts of dominating mixed smoothness.

Functional Analysis · Mathematics 2016-10-05 Van Kien Nguyen , Winfried Sickel

Let $X$ be a space of homogeneous type and $L$ be a nonnegative self-adjoint operator on $L^2(X)$ satisfying Gaussian upper bounds on its heat kernels. In this paper we develop the theory of weighted Besov spaces…

Functional Analysis · Mathematics 2018-09-11 Huy-Qui Bui , The Anh Bui , Xuan Thinh Duong

This paper gives a uniform-theoretic refinement of classical homotopy theory. Both cubical sets (with connections) and uniform spaces admit classes of weak equivalences, special cases of classical weak equivalences, appropriate for the…

Algebraic Topology · Mathematics 2021-09-20 Sanjeevi Krishnan , Crichton Ogle

In this paper, we compare several functors which take simplicial categories or model categories to complete Segal spaces, which are particularly nice simplicial spaces which, like simplicial categories, can be considered to be models for…

Algebraic Topology · Mathematics 2007-10-11 Julia E. Bergner

In this article, the authors establish the pointwise characterization of Besov and Triebel-Lizorkin spaces on spaces of homogeneous type via clarifying the relationship among Haj\l asz-Sobolev spaces, Haj\l asz-Besov and Haj\l…

Functional Analysis · Mathematics 2022-01-26 Ryan Alvarado , Fan Wang , Dachun Yang , Wen Yuan