不相交差族(p^n,4,1)-DDF的存在性已经得到证明,其中p≡1(mod12)是一个质数.推广该结果,给出了当v≡1(mod12)为质数幂时不相交差族(v,4,1)-DDF的存在性结果.
The existence of (p^n ,4,1) disjoint difference families with p ≡ 1(mod12 ) a prime number. In this paper, it is proved that there exists a (v,4,1) - DDF , where v≡1(mod12 ) is a prime power.