About this representation
  | Group | J2 | 
  | Group generators | Standard generators | 
  | Dimension | 21 | 
  | Distinguishing letter | b | 
  | Ring | Z[b5] | 
  | Characteristic | 0 | 
  | Irreducibility information | Absolutely irreducible | 
  | Indicator | + | 
  | Character | χ5 | 
  | Character ring | Z[b5] | 
  | Schur index | 1 | 
  | Notes | From SJN's PhD thesis: perm rep on 560 pts | 
  | Contributed by | Simon Nickerson | 
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  | Check | Description | Date | Checked by | Result | 
  
    | Files exist | Check whether files exist (where stated). | Jul  4, 2006 | certify.pl version 0.05 | Pass |