Constant mean curvature radial graphs over domains of S n

We establish the existence of hypersurfaces with constant mean curvature and a prescribed boundary in Euclidean space, represented as radial graphs over domains of the unit sphere. Under the assumptions that the mean curvature of the domain’s boundary is positive and that a subsolution exists for the associated Dirichlet problem, we extend Serrin’s classical result to include the case of positive constant mean curvature.