in which f(r), h(r)are general functions of r, Ω2denotes a unit two-sphere, two-cube, or two-pseudo-sphere, depending on the sectional curvature k =1, 0, −1, respectively. Our previous work only deals with the case of k =1. Here we consider all of the 3 cases at the same time. The Misner–Sharp mass form used in [7]to derive Schwarzschild and related solutions is the form for Einstein gravity without a cosmological constant in a spherically symmetric space.