Author

W. Dong

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Preprint Aug 2026

Interior Hessian estimates for Hessian quotient equations

In this paper, we establish interior $C^2$ estimates for admissible semiconvex solutions to the general Hessian quotient equation $\frac{\sigma_k}{\sigma_l}(D^2u)=f(x,u),$ for the cases $l=k-1$ and $l=k-2$, where $f$ is a positive $C^2$ function. Such estimates are known to fail in general for $k-l\geq 3$, even for con...

W. Dong, Ruijia Zhang · 7 citations · ⚡1

Preprint Aug 2026

Interior estimates for the Hessian quotient equations

In this paper, we establish interior $C^2$ estimates for admissible semiconvex solutions to the general Hessian quotient equation $ \frac{\sigma_k}{\sigma_l}(D^2u)=f(x,u), $ for the cases $l=k-1$ and $l=k-2$, where $f$ is a positive $C^{1,1}$ function. Such estimates are known to fail in general for $k-l\geq 3$, even f...

W. Dong, Ruijia Zhang · 1 citation