Hao, Shuhan, Yao Zhang, and Zhenqiu Zhang. “W2,p-Regularity of Lp Viscosity Solutions to Fully Nonlinear Elliptic Equations With Low-Order Terms”. Journal of Advances in Applied & Computational Mathematics 11 (August 14, 2024): 84–99. Accessed November 7, 2024. https://avantipublishers.com/index.php/jaacm/article/view/1533.