Radial Density Statistics of the Galaxy Distribution and the Luminosity
  Function
  This paper discusses a connection between the relativistic number counts of
cosmological sources and the observed galaxy luminosity function (LF).
Observational differential number densities are defined and obtained from
published LF data using such connection. We observe a distortion in the
observational quantities that increases with higher redshift values as compared
to the theoretical predictions. The use of different cosmological distance
measures plays a role in such a distortion
