Qi S. Zhang

collaborators

2 papers

math.DG2024

A Sharp Li-Yau gradient bound on Compact Manifolds

Qi S. Zhang

Let $(\M^n, g)$ be a $n$ dimensional, complete ( compact or noncompact) Riemannian manifold whose Ricci curvature is bounded from below by a constant $- K \leq 0$ . Let $u$ be a posit…

math.AP2024

A Review of results on axially symmetric Navier-Stokes equations, with addendum by X. Pan and Q. S. Zhang

Qi S. Zhang

In this paper, we give a brief survey of recent results on axially symmetric Navier-Stokes equations (ASNS) in the following categories: regularity criterion, Liouville property fo…