An improved recursive construction for disjoint Steiner quadruple systems

Etzion, T; Zhou, JL

Etzion, T (corresponding author), Technion, Dept Comp Sci, IL-3200003 Haifa, Israel.

JOURNAL OF COMBINATORIAL DESIGNS, 2020; 28 (8): 551

Abstract

Let D(n) be the number of pairwise disjoint Steiner quadruple systems (SQS) of order n. A simple counting argument shows that D(n) <= n-3 and a set......

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