  We consider the cosmological model in which a part of the Universe
\Omega_h\sim 10^-5 is in the form of primordial black holes with mass \sim
10^5M_\odot. These primordial black holes would be centers for growing
protogalaxies which experienced multiple mergers with ordinary galaxies. This
process of galaxies formation is accompanied by the merging of central black
holes in the galactic nuclei. It is shown that recently discovered correlations
between the central black holes and bulges of galaxies are naturally reproduced
in this scenario.

Astrophysics