𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A small generating set for the 3-BD closed set of block sizes ≥ 6

✍ Scribed by Shaopu Zhang; Jianguo Lei; Hairong Kong


Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
128 KB
Volume
16
Category
Article
ISSN
1063-8539

No coin nor oath required. For personal study only.

✦ Synopsis


Let v, k be positive integers and k ≥ 3, then K k = {v : v ≥ k} is a 3-BD closed set. Two finite generating sets of 3-BD closed sets K 4 and K 5 are obtained by H. Hanani [5] and Qiurong Wu [12] respectively. In this article we show that if v ≥ 6, then v ∈ B 3 (K, 1), where K = {6, 7, . . . , 41, 45, 46, 47, 51, 52, 53, 83, 84}{22, 26}; that is, we show that K is a generating set for K 6 . Finally we show that v ∈ B 3 (6, 20) for all v ∈ K{35, 39, 40, 45}.