Xinfeng Wu

activity

20122021

most citedAn atomic decomposition characterization of flag Hardy spaces $H^p_F({\rr}^{n}\times{\rr}^m)$ with applications

5 citations · 5 across the 3 of their papers we have counts for

collaborators

3 papers

math.AP2021

The Kato-Ponce Inequality with Polynomial Weights

Seungly Oh, Xinfeng Wu

We consider various versions of fractional Leibniz rules (also known as Kato-Ponce inequalities) with polynomial weights $⟨ x ⟩^{a} = (1 + ∣ x ∣^{2})^{a /2}$ for $a \geq 0$ . We sho…

math.CA2019

Variational Inequalities for Bilinear Averaging Operators over Convex Bodies

Yong Ding, Guixiang Hong, Xinfeng Wu

We study $q$ -variation inequality for bilinear averaging operators over convex bodies $(G_{t})_{t > 0}$ defined by \begin{align*} \mathbf{A}_t^G(f_1,f_2)(x) & =\frac{1}{|G_t|}\int_{G_t…

math.FA2012★ 5 cited

An atomic decomposition characterization of flag Hardy spaces $H^p_F({\rr}^{n}\times{\rr}^m)$ with applications

Xinfeng Wu

In this paper, we give an atomic decomposition characterization of flag Hardy spaces $H^p_F({\rr}^n\times {\rr}^m)$ for $0 < p \leq 1$ , which were introduced in \cite{hl1}. A remarkabl…