On orthogonal arrays of strength 3 and 5 achieving Rao's bound
On orthogonal arrays of strength 3 and 5 achieving Rao's bound
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在强度为 3 和 5 的正交数组上实现 Rao 界
DOI:
10.1007/bf01788102
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发表时间:
1986
影响因子:
0.7
通讯作者:
R. Noda
中科院分区:
文献类型:
--
作者:
R. Noda
It is shown that ifAis an orthogonal array (N, n, q, 3) achieving Rao's bound, thenAis either(i)an orthogonal array (2n, n, 2, 3) withn≡ 0 (mod 4), or(ii)an orthogonal array (q3,q+ 2,q, 3) withqeven.This result should be compared with a theorem of P.J. Cameron on extendable symmetric designs.It is also shown that ifAis an orthogonal array (N, n, q, 5) achieving Rao's bound, thenAis either the orthogonal array (32, 6, 2, 5) or the orthogonal array (36, 12, 3, 5).