A simple 6-(22,8,60) designs is exhibited. It is then shown using Qui-rong Wu's generalization of a result of Luc Teirlinck that this design together with our 6-(14,7,4) design implies the existence of simple 6-(23 + 16m,8,4(m + I) (16m + 17)) designs for all positive integers m. All the above ment
An infinite family of symmetric designs
โ Scribed by Christopher J. Mitchell
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 363 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper, using the construction method of [3], we show that if q > 2 is a prime power such that there exists an afhne plane of order q -1, then there exists a strongly divisible 2 -((q -l)(qh -l), qh-'(q -l), qh-') design for every h 2 2. We show that these quasi-residual designs are embeddable, and hence establish the existence of an iufinite family of symmetric 2_tqh+' -q+Lqh,q h-1) designs This construction may be regarded as a generalisation of the . construction of [l, Chapter 4, %&on l] and [4].
๐ SIMILAR VOLUMES
An embedding theorem for certain quasi-residual designs is proved and is used to construct a series of symmetric designs with v = (1 + 16 + ... + 16")9 + 16 "+~, k =(1 + 16 + ... + 16m)9, and 2 = (1 + 16 + ... + 16m-~)9 + 16".3, for a non-negative integer m.
In this paper, a construction for 2-designs is given. A special case of this construction gives an infinite family of non-embeddable quasi-residual designs, with parameters 2&(2(3 d+1 )&2, 2(3 d ), 3 d ), where d 1. 1996 Academic Press, Inc. (i) The point set P of D has cardinality v; (ii) every