The Counting of Galaxies from Type Ia Supernovae Rate
  The aim of this paper is to provide a model of relationship between the number of galaxies and the rate of type Ia supernovae (SNe). In addition, present approach prepares a framework to analyze this relationship and its dependence on the redshif, giving aid to the deepening of studies on radial distribution of galaxies. The work also shows how the ratio of counts entails to the topological aspects regarding the evolution of the universe itself from z ~ 2. The relationships refer directly to the redshift apart from morphological considerations. 
Nilo Serpa
astro-ph.CO