Ziwei Li

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math.FA2026

A Novel Two-Parameter Penalty: Relaxation Degree Analysis and Sparse Signal Recovery

Ziwei Li, Wengu Chen, Huanmin Ge +1

In this article, we introduce a nonconvex two-parameter penalty function $P_{a, p}$ , parameterized by $a \in (0, \infty)$ and $p \in (0, 1]$ , and the relaxation degree RD $_{P}$ for a separa…

math.FA2026

Matrix-Weighted PoincarÃ©-Type Inequalities with Applications to Logarithmic HajÅasz--Besov Spaces on Spaces of Homogeneous Type

Ziwei Li, Dachun Yang, Wen Yuan

Let $X$ be a space of homogeneous type. In this article, based on the reducing operators of matrix $A_{p}$ -weights, the authors introduce the vector-valued HajÅasz grad…

A Novel Two-Parameter Penalty: Relaxation Degree Analysis and Sparse Signal Recovery

Matrix-Weighted PoincarÃ©-Type Inequalities with Applications to Logarithmic HajÅasz--Besov Spaces on Spaces of Homogeneous Type

Matrix-Weighted PoincarÃ©-Type Inequalities with Applications to Logarithmic HajÅasz--Besov Spaces on Spaces of Homogeneous Type