The exterior Dirichlet Problem for homogeneous complex $k$-Hessian equation

Adv. Nonlinear Stud. 23 (2023), no. 1 In this paper, we consider the homogeneous complex k-Hessian equation in an exterior domain $\mathbb{C}^n\setminus\Omega$. We prove the existence and uniqueness of the $C^{1,1}$ solution by constructing approximating solutions. The key point for us is to establish the uniform gradient estimate and the second order estimate.