Yiqun Chen

activity

20222026

most citedBoundedness of Fractional Integrals on Hardy Spaces Associated with Ball Quasi-Banach Function Spaces

2 citations · 2 across the 7 of their papers we have counts for

collaborators

8 papers

math.CA2026

Capacitary Trapping and Brownian Escape: A Sharp Hardy Principle for Absorbing Media

Yiqun Chen, Jie Xiao, Dachun Yang +2

We study Brownian motion killed upon exiting arbitrary open sets $Ω \subset R^{n}$ , $n \in [3, \infty) \cap N$ . Let $α \in (0, 1]$ . The infimal radius $d_{α} (x)$ at which the abs…

math.FA2026

Atomic Characterization and Its Applications of Matrix-Weighted Variable Hardy Spaces

Yiqun Chen, Dachun Yang, Wen Yuan +1

In this article, by means of the matrix-weighted grand maximal function we first introduce the variable Hardy space $H_{W}^{p (\cdot)}$ on $R^{n}$ with the $\mathscr{A}_{p(\cdo…

math.FA2026

Real-variable theory of matrix-weighted multi-parameter Besov--Triebel--Lizorkin-type spaces

Fan Bu, Yiqun Chen, Tuomas Hytönen +2

We develop a comprehensive theory for a general class of multi-parameter function spaces of Besov-Triebel-Lizorkin type, with a matrix weight. We prove the equivalence of different…

math.FA2025

Matrix-Weighted Campanato Spaces: Duality and Calderón--Zygmund Operators

Yiqun Chen, Dachun Yang, Wen Yuan

Let $p \in (0, \infty)$ , $q \in [1, \infty)$ , $s \in Z_{+}$ , and $W$ be an $A_{p}$ -matrix weight, which in the scalar case is exactly a Muckenhoupt $A_{m a x {1, p}}$ weight. In this ar…

math.FA2025

Maximal Function and Atomic Characterizations of Matrix-Weighted Hardy Spaces with Their Applications to Boundedness of Calderón--Zygmund Operators

Fan Bu, Yiqun Chen, Dachun Yang +1

Let $p \in (0, 1]$ and $W$ be an $A_{p}$ -matrix weight, which in scalar case is exactly a Muckenhoupt $A_{1}$ weight. In this article, we introduce matrix-weighted Hardy spaces $H_{W}^{p}$ vi…

math.FA2022

Boundedness of Calderón--Zygmund operators on ball Campanato-type function spaces

Yiqun Chen, Hongchao Jia, Dachun Yang

Let $X$ be a ball quasi-Banach function space on $R^{n}$ satisfying some mild assumptions. In this article, the authors first find a reasonable version $T$ of t…

math.FA2022

Boundedness of Fractional Integrals on Ball Campanato-Type Function Spaces

Yiqun Chen, Hongchao Jia, Dachun Yang

Let $X$ be a ball quasi-Banach function space on $R^{n}$ satisfying some mild assumptions and let $α \in (0, n)$ and $β \in (1, \infty)$ . In this article, when $α \in (0, 1)$ , the a…

math.CA2022★ 2 cited

Boundedness of Fractional Integrals on Hardy Spaces Associated with Ball Quasi-Banach Function Spaces

Yiqun Chen, Hongchao Jia, Dachun Yang

Let $X$ be a ball quasi-Banach function space on $R^{n}$ and $H_{X} (R^{n})$ the Hardy space associated with $X$ , and let $α \in (0, n)$ and $β \in (1, \infty)$ . In this art…