Future collapse mass versus the radius of the HDCs of the BGW superclusters at redshifts z = 0 (right point; Cols. 9 and 10 in Table 2), z = 0.5 (middle point), and z = 1 (left point), and the masses and radii of the core of the Corona Borealis supercluster and SCl A2142, which at z = 0.5 correspond to those of their spheres of influence (see text). Legend lists HDCs of superclusters plotted in the figure. Black lines show theoretical mass–radius relation for redshifts z = 0.0 (solid line), z = 0.5 (dashed line), and z = 1.0 (dot-dashed line) (Sect. 3.1).