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Blocking sets in designs with block size four II

✍ Scribed by D.G. Hoffman; C.C. Lindner; ; K.T. Phelps

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 456 KB
Volume: 89
Category: Article
ISSN: 0012-365X
DOI: 10.1016/0012-365x(91)90116-j

No coin nor oath required. For personal study only.

✦ Synopsis

In this paper, we give constructions of block designs with block size 4 and index 1, for L = 3, 6 which have a blocking set for all admissible orders (with at most 5 possible exceptions).

A design which admits a blocking set is 2-colorable. These results, in conjunction with an earlier paper [l], settle the existence question for 2-colorable block designs with block size 4 for all I (with a handful of possible exceptions).

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