The pluricomplex Green function of the Monge-Ampère equation for $(n-1)$-plurisubharmonic functions and form type $k$-Hessian equations

In this paper, we introduce the pluricomplex Green function of the Monge-Ampère equation for $(n-1)$-plurisubharmonic functions by solving the Dirichlet problem for the form type Monge-Ampère and Hessian equations on a punctured domain. We prove the pluricomplex Green function is $C^{1,\alpha }$ by constructing approximating solutions and establishing uniform a priori estimates for the gradient and the complex Hessian. The singular solutions turn out to be smooth for the $k$-Hessian equations for $(n-1)$-$k$-admissible functions.