“…Recently, Ma and Qiu [24] solved the the Neumann problem of k-Hessian equations in uniformly convex domains. After their work, the research on the Neumann problem of other equations has made many progresses (see [4,5,25,35]). Furthermore, Jiang and Trudinger [17,18] studied the general oblique boundary value problems for augmented Hessian equations with some regular conditions and concavity conditions.…”