Interpolation of data from redundancies in Fourier transforms over finite Abelian groups (Corresp.)
Sharad V. Kanetkar, M. Wagh · IEEE Transactions on Information Theory · 1980
lt is shown that if the Fourier transform over an Abelian groupGof a sequence is zero except over a set of ceset representatives of a subgroupH'\subset G, then the sequence can be easily reconstructed from its values over a subgroupH \subset Grelated toH'.