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Piotrowski's infinite series of Steiner Quadruple Systems revisited

✍ Scribed by Helmut Siemon

Book ID: 118771463
Publisher: Springer
Year: 1996
Tongue: English
Weight: 565 KB
Volume: 8
Category: Article
ISSN: 0925-1022
DOI: 10.1007/bf00130582

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## Abstract A __Steiner quadruple system__ of order __v__ (briefly SQS (__v__)) is a pair (__X__, $\cal B$), where __X__ is a __v__‐element set and $\cal B$ is a set of 4‐element subsets of __X__ (called __blocks__ or __quadruples__), such that each 3‐element subset of __X__ is contained in a uniqu