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Forbidden configurations and Steiner designs

✍ Scribed by Niranjan Balachandran


Book ID
118298985
Publisher
Springer
Year
2012
Tongue
English
Weight
189 KB
Volume
65
Category
Article
ISSN
0925-1022

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Some rigid Steiner 5-designs
✍ M. J. Grannell πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 107 KB

## Abstract Hitherto, all known non‐trivial Steiner systems __S__(5, __k, v__) have, as a group of automorphisms, either __PSL__(2, __v__βˆ’1) or __PGL__(2, (__v__βˆ’2)/2) Γ— __C__~2~. In this article, systems __S__(5, 6, 72), __S__(5, 6, 84) and __S__(5, 6, 108) are constructed that have only the trivi