On the existence of super-simple designs with block size 4
β Scribed by Peter Adams; Darryn E. Bryant; A. Khodkar
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 43 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0001-9054
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The necessary conditions for the existence of a superβsimple resolvable balanced incomplete block design on __v__ points with __k__β=β4 and Ξ»β=β3, are that __v__ββ₯β8 and __v__ββ‘β0βmodβ4. These conditions are shown to be sufficient except for __v__β=β12. Β© 2003 Wiley Periodicals, Inc.
## Abstract The necessary conditions for the existence of a superβsimple resolvable balanced incomplete block design on __v__ points with block size __k__ = 4 and index Ξ» = 2, are that __v__ββ₯β16 and $v \equiv 4\; (\bmod\; {12})$. These conditions are shown to be sufficient. Β© 2006 Wiley Periodical
We consider sets of incomplete transversal designs with block size five TD [S; u] -TD [S; n]. We show that designs exist if and only if u 2 4n, with the possible exception of 108 values of (v, n) for which existence is undecided.
## Abstract Several new families of __c__βBhaskar Rao designs with block size 4 are constructed. The necessary conditions for the existence of a __c__βBRD (Ο ,4,Ξ») are that: (1)Ξ»~min~=βΞ»/3 β€ __c__ β€ Ξ» and (2a) __c__β‘Ξ» (mod 2), if Ο > 4 or (2b) __c__β‘ Ξ» (mod 4), if Ο = 4 or (2c) __c__β Ξ» β 2, if Ο =