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Matrix constructions of divisible designs

✍ Scribed by K.T. Arasu; Willem H. Haemers; Dieter Jungnickel; Alexander Pott

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
545 KB
Volume
153
Category
Article
ISSN
0024-3795

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πŸ“œ SIMILAR VOLUMES

New constructions of divisible designs
New constructions of divisible designs
✍ James A. Davis πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 433 KB

## A construction is given for a (pzO(p+ 1),p2,pZnf'(p+ l),~?"+',p~~(p+ 1)) (p a prime) divisible difference set in the group H x 2, \*a+ I where His any abelian group of order pf 1. This can be used to generate a symmetric semi-regular divisible design; this is a new set of parameters for A, #O,

Two new direct product-type construction
Two new direct product-type constructions for resolvable group-divisible designs
✍ Rolf S. Rees πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 658 KB

## Abstract We present two direct product‐type constructions which will prove useful in the construction of resolvable designs. We use our constructions to complete the spectrum for resolvable group‐divisible designs with block size three, as well as to give a short proof of the existence of decomp