摘要:Our purpose in this paper is to investigate when a complete two-sided hypersurface immersed with constant mean curvature in a Killing warped product Mn ×ρ R, whose Riemannian baseMn has sectional curvature bounded from below and such that the warping function ρ ∈ C∞(M) issupposed to be concave, is minimal (and, in particular, totally geodesic) in the ambient space. Ourapproach is based on the application of the well known generalized maximum principle of OmoriYa.