Juan Zhang

activity

20182023

most citedWeak and strong types estimates for square functions associated with operators

2 citations · 2 across the 3 of their papers we have counts for

collaborators

3 papers

math.DG2023

Equivalence of Strong Brunn-Minkowski Inequalities and CD Conditions in Heisenberg Groups

Juan Zhang, Peibiao Zhao

The present paper investigates the sub-Riemannian version of the equivalence between the curvature-dimension conditions and strong Brunn-Minkowski inequalities in the sub-Riemannia…

math.CA2020★ 2 cited

Weak and strong types estimates for square functions associated with operators

Mingming Cao, Zengyan Si, Juan Zhang

Let $L$ be a linear operator in $L^{2} (R^{n})$ which generates a semigroup $e^{- t L}$ whose kernels $p_{t} (x, y)$ satisfy the Gaussian upper bound. In this paper, we investigate s…

math.CA2018

Almost everywhere divergence of spherical harmonic expansions and equivalence of summation methods

Xianghong Chen, Dashan Fan, Juan Zhang

We show that there exists an integrable function on the $n$ -sphere $(n \geq 2)$ , whose Cesàro (C, $\frac{n - 1}{2}$ ) means with respect to the spherical harmonic expansion diverge unbou…