In this paper, some special groupdivisibledesigns have been constructed from ovals in finite projective planes.
本文利用有限射影平面中的卵形，构造了一些特殊的可分组设计。
2
This dissertation investigates two kinds of combinatorial designs, Kirkman packing designs and large sets of group-divisibledesigns.
本文讨论构造门限方案的两类组合设计，即可分解的填充设计和可分组设计大集。
3
In these 3-analogues of the fundamental constructions, groupdivisible 3-designs(called H-designs in the sequel) are also used as essential ingredients.