TY - JOUR
T1 - On the covering of pairs by quadruples
AU - Assaf, A. M.
PY - 1986/9
Y1 - 1986/9
N2 - Let X be a finite set of size ν, let λ be a positive integer, and α(4, λ, ν) be the minimum number of quadruples such that each pair of elements of X is contained in at least λ of them. Mills [5, 6] has determined α(4, 1, ν) for all ν. In this paper α(4, λ, ν) is determined for all ν and λ > 1.
AB - Let X be a finite set of size ν, let λ be a positive integer, and α(4, λ, ν) be the minimum number of quadruples such that each pair of elements of X is contained in at least λ of them. Mills [5, 6] has determined α(4, 1, ν) for all ν. In this paper α(4, λ, ν) is determined for all ν and λ > 1.
UR - http://www.scopus.com/inward/record.url?scp=38249040615&partnerID=8YFLogxK
U2 - 10.1016/0012-365X(86)90084-1
DO - 10.1016/0012-365X(86)90084-1
M3 - Article
AN - SCOPUS:38249040615
SN - 0012-365X
VL - 61
SP - 119
EP - 132
JO - Discrete Mathematics
JF - Discrete Mathematics
IS - 2-3
ER -