the Natural Science Foundation of Hebei Province (103146) and Doctoral Research Fund for Hebei Higher Learning Institutions
In this paper, we give a unified method to construct G-designs and solve the existence of [C(2k-1)^(r)]-GD(v) for v=1(mod 4k), where the graph C10^(r),1≤r≤k-2, denotes a circle of length 2k - 1 with one c...