TY - JOUR
T1 - Directed Covering with Block Size 5 and Index Odd
AU - Assaf, Ahmed M.
AU - Alhalees, H.
AU - Singh, L. P.S.
PY - 2002/7
Y1 - 2002/7
N2 - A directed covering design, DC(v, k, λ), is a (v, k, 2λ) covering design in which the blocks are regarded as ordered k-tuples and in which each ordered pair of elements occurs in at least λ blocks. Let DE(v, k, λ) denote the minimum number of blocks in a DC(v, k, λ). In this paper the values of the function DC(v, 5, λ) are determined for all even integers v ≥ 5 and λ odd.
AB - A directed covering design, DC(v, k, λ), is a (v, k, 2λ) covering design in which the blocks are regarded as ordered k-tuples and in which each ordered pair of elements occurs in at least λ blocks. Let DE(v, k, λ) denote the minimum number of blocks in a DC(v, k, λ). In this paper the values of the function DC(v, 5, λ) are determined for all even integers v ≥ 5 and λ odd.
UR - http://www.scopus.com/inward/record.url?scp=34247092975&partnerID=8YFLogxK
U2 - 10.1016/S1571-0653(04)00053-8
DO - 10.1016/S1571-0653(04)00053-8
M3 - Article
AN - SCOPUS:34247092975
SN - 1571-0653
VL - 11
SP - 30
EP - 52
JO - Electronic Notes in Discrete Mathematics
JF - Electronic Notes in Discrete Mathematics
ER -