## Abstract We determine the distribution of 3β(__q__ + 1,__k__,Ξ») designs, with __k__ Ο΅ {4,5}, among the orbits of __k__βelement subsets under the action of PSL(2,__q__), for __q__ Ο΅ 3 (mod 4), on the projective line. As a consequence, we give necessary and sufficient conditions for the existence
β¦ LIBER β¦
Some block designs associated with quadrics of PG(4, q) and PG(5, q
β Scribed by Ivan Casaglia
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 468 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0378-3758
No coin nor oath required. For personal study only.
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First we define relations between the u = (s\* + s + 1) (s + 1) flags (point-line incident pairs) of a finite projective plane of order s. Two flags a E (p, 1) and b = (p', l'), where p and p' are two points and 1 and 1' are two lines of the projective plane, are defined to