摘要
利用扩充酉群的可逆性，通过矩阵方法，选取有限奇异酉几何中的２维全迷向子空间作处理，构作了一个有多个结合类的对称结合方案和一些部分平衡不完全区组（ＰＢＩＢ）设计，并计算了全部参数．
A class of symmetric association schemes and some related partially balanced incomplete block (PBIB) designs (with all parameters computed) are constructed with as treatments 2-dimensional totally isotropic subspaces of the finite singular unitary geometries, by means of matrices and transitivities of the corresponding extended unitary groups.
出处
《聊城大学学报（自然科学版）》
1996年第1期1-7,共7页
Journal of Liaocheng University:Natural Science Edition
关键词
有限奇异酉几何
m维全迷向子空间
部分平衡不完全区组设计
Finite singular unitary geometries
M-dimensional totally isotropic subspaces
Partially balanced incomplete block designs
