Regularity for convex viscosity solutions of $\ddot{I}{ƒ}_2$ Equation

Ruosi Chen, Huaiyu Jian, Xushan Tu +1

We prove interior $C^2$ regularity result for convex viscosity solutions of the quadratic Hessian equation $\ddot{I}{ƒ}_2(D^{2}u)=f(x)$, under the assumption that $f\in C^{0,1}$ with $\in…