There exist Steiner systems S(2,8,225) and S(2,9,289)
2025/09/12 by Hetman, Ivan
#Combinatorics (math.CO) #FOS: Mathematics
paper · doi:10.48550/arxiv.2509.10673
Abstract
In this note six Steiner systems S(2,8,225) and four Steiner systems S(2,9,289) are presented. This resolves two of 129 undecided cases for block designs with block length 8 and 9, mentioned in Handbook of Combinatorial Designs.
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