Areal models of relativistic space-finite objects

In the Poincare-Minkowski space-time, all possible objects are presented, spatial cross sections of which are geometrical figures of finite dimensions and which are mathematically modelled by means of the metric concepts of space-time, such as the length of a line, the area of surfaces of two and three dimensions, and the volume of the space-time itself. All the above-listed areal objects are described by the boundary-value problem for minimal surfaces of various dimensions