1 Introduction
  
  
  1.1  What  is  the  Role  of  the  GradedRingForHomalg Package in the homalg
  Project?
  
  The  homalg  project  [hpa10]  aims  at  providing  a  general  and abstract
  framework  for  homological  computations.  The  package GradedRingForHomalg
  enables  the  homalg  project  to  endow commutative rings in homalg with an
  Abelian grading.
  
  
  1.2 Functionality
  
  The  package  GradedRingForHomalg  on  the  one  hand  builds on the package
  MatricesForHomalg   and   on   the   other   hands   adds  functionality  to
  MatricesForHomalg.
  
  
  1.3 The Math Behind This Package