Reconstructing a generalized quadrangle with a hemisystem from a 4-class association scheme
| Autor: | Giusy Monzillo |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Discrete Mathematics. 345:112875 |
| ISSN: | 0012-365X |
| DOI: | 10.1016/j.disc.2022.112875 |
| Popis: | In 2013, van Dam, Martin and Muzychuk constructed a cometric $Q-$ antipodal $4-$class association scheme from a GQ of order $(t^2,t)$, $t$ odd, which have a hemisystem. In this paper we characterize this scheme by its Krein array. The techniques which are used involve the triple intersection numbers introduced by Coolsaet and Juri\v{s}i\'c. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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