摘要
证明了单纯设计ＮＢ〔４，１２；ｖ〕存在的必要条件同时也是充分的．
It is proved in this paper that for λ =12, the necessary conditions for the existence of a simple B 4,λ; v are also sufficient.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1996年第9期30-33,共4页
Journal of Shanghai Jiaotong University
