2-COLORINGS IN S(T, T + 1, V)

被引:14
|
作者
GIONFRIDDO, M [1 ]
LO FARO, G [1 ]
机构
[1] FAC INGN REGGIO CALABRIA, I-89128 REGGIO DI CALALBRIA, ITALY
关键词
D O I
10.1016/0012-365X(93)90161-L
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let S(t,k,v) be any nontrivial Steiner system. In this paper we prove the nonexistence of 2-colourings in Steiner systems S(t, t + 1, v) when t + 1 is an odd number. Further, we prove that if t + 1 is an even number and C is a blocking set of the system S(t, t + 1, v) then Absolute value of C = v/2.
引用
收藏
页码:263 / 268
页数:6
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