共 50 条
AUTOMORPHISMS OF DIRECTED TRIPLE-SYSTEMS
被引:2
|作者:
COLBOURN, CJ
[1
]
机构:
[1] UNIV WATERLOO,DEPT COMBINATOR & OPTIMIZAT,WATERLOO N2L 3G1,ONTARIO,CANADA
关键词:
D O I:
10.1017/S0004972700029026
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
The obvious necessary conditions for a triple system of index two having a given automorphism group to underly a directed triple system having the same group are shown to be sufficient. An efficient algorithm for directing the triple system in a way that preserves its group is given. Applications to the existence of directed triple systems with various automorphisms are outlined.
引用
收藏
页码:257 / 264
页数:8
相关论文