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Modular invariance property of association schemes, type II codes over finite rings and finite abelian groups and reminiscences of François Jaeger (a survey)

Eiichi Bannai
1999 Annales de l'Institut Fourier  
Type II codes over finite rings and finite abelian groups.  ...  Similarly, we define the code C to be a Type II code, if (1) C is self-dual with respect to the ordinary inner product in (Z/2kZ) n , and (2) ^k\E-wt{u)^ueC.  ... 
doi:10.5802/aif.1690 fatcat:unx62ud6nbemfhcwae2rr3gvqu