Classification of association schemes of order 31

• data of SH-equivalence classes of skew-Hadamard matrices : AllHskew32upSHequiv.txt
• program to make a gap data of the above data : dat2gap.c (C program source)

  	gcc dat2gap.c
  	./a.out 32 7227 < AllHskew32upSHequiv.txt > sshadam.gapdata
        

  You will get "sshadam.gapdata".
• gap code : classify.gap

  	gap -o 5120m claasify.gap
        

  Remark that we need big memory. Takes several hours.
• You will get three files:
  • as.gapdata : List of association schemes (containing isomorphic schemes, BIG ! 750MBytes)
  • comb3data.gapdata : List of 3-point intersection data
  • rep.gapdata : List of representatives in "as.gapdata"
• The final result is here.