activity
20212023
collaborators

7 papers

math.AP2023

Sharp weighted CR trace Sobolev inequalities

Gunhee Cho, Zetian Yan

We establish a sharp Sobolev trace inequality on the Siegel domain involving the weighted norm-. The inequality is closely related the reali…

math.DG2023

Improved Sobolev inequalities on CR shpere

Zetian Yan

We establish improved CR Sobolev inequalities on CR sphere under the vanishing of higher order moments of the volume element. As a direct application, we give a simpler proof of th…

math.DG2022

Convergence rate of the weighted Yamabe flow

Pak Tung Ho, Jinwoo Shin, Zetian Yan

The weighted Yamabe flow was the geometric flow introduced to study the weighted Yamabe problem on smooth metric measure spaces. Carlotto, Chodosh and Rubinstein have studied the c…

math.DG2022

Some results on the weighted Yamabe problem with or without boundary

Pak Tung Ho, Jinwoo Shin, Zetian Yan

Let be a compact smooth metric measure space with boundary with . In this article, we consider several Yamabe-type problems on a com…

math.DG2022

The weighted Yamabe problem with boundary

Pak Tung Ho, Jinwoo Shin, Zetian Yan

We introduce a Yamabe-type flow \begin{align*} \left\{ \begin{array}{ll} \frac{\partial g}{\partial t} &=(r^m_ϕ-R^m_ϕ)g \\ \frac{\partial ϕ}{\partial t} &=\frac{m}{2}(R^m_ϕ-r^m_ϕ)…

math.DG2022

Improved higher-order Sobolev inequalities on CR sphere

Zetian Yan

We improve higher-order CR Sobolev inequalities on under the vanishing of higher order moments of the volume element. As an application, we give a new and direct proof o…

math.DG2021

Convergence of the Weighted Yamabe Flow

Zetian Yan

We introduce the weighted Yamabe flow , on a smooth metric measure space $(M^…