The design of the century

Mathematica Slovaca

M. Grannell¹  A. Forbes¹  T. Griggs¹ 

关键词: Steiner system;    colouring;    2-chromatic;    blocking set;   

DOI  :  10.2478/s12175-007-0041-4

学科分类：数学（综合）

来源: Slovenska Akademia Vied * Matematicky Ustav / Slovak Academy of Sciences, Mathematical Institute

【 摘 要 】

We construct a 2-chromatic Steiner system S(2, 4, 100) in which every block contains three points of one colour and one point of the other colour. The existence of such a design has been open for over 25 years.

【 授权许可】

Unknown