TY - JOUR T1 - Examples of Twice Differentiable Functions with Continuous Laplacian and Bounded Discontinuous Hessian AU - Pan , Yifei AU - Yan , Yu JO - Analysis in Theory and Applications VL - 3 SP - 311 EP - 334 PY - 2024 DA - 2024/10 SN - 40 DO - http://doi.org/10.4208/ata.OA-2024-0017 UR - https://global-sci.org/intro/article_detail/ata/23468.html KW - Twice differentiable, continuous Laplacian, bounded Hessian. AB -
We construct examples of twice differentiable functions in $\mathbb{R}^n$ with continuous Laplacian and bounded discontinuous Hessian. The same construction is also applicable to higher order differentiability, the Monge-Ampère equation, and the mean curvature equation for hypersurfaces.