The existence spectrum for overlarge sets of pure directed triple systems
The existence spectrum for overlarge sets of pure directed triple systems
复制标题
超大纯有向三元系集合的存在谱
DOI:
10.1007/s11425-010-4071-y
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发表时间:
2010-09
期刊:
影响因子:
--
通讯作者:
康庆德
中科院分区:
文献类型:
--
作者:
刘园园;康庆德
A directed triple system of orderv, denoted by DTS(v), is a pair (X,) whereXis av-set andis a collection of transitive triples onXsuch that every ordered pair ofXbelongs to exactly one triple of. A DTS(v) (X,) is called pure and denoted by PDTS(v) if (a,b,c) ∈implies (c,b,a) ∉. An overlarge set of PDTS(v), denoted by OLPDTS(v), is a collection {(Y {yi},):yi∈Y,j∈Z3}, whereYis a (v+ 1)-set, each (Y{yi},) is a PDTS(v) and theseform a partition of all transitive triples onY. In this paper, we shall discuss the existence problem of OLPDTS(v) and give the following conclusion: there exists an OLPDTS(v) if and only ifv≡ 0,1 (mod 3) andv> 3.
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DOI:
10.1007/s11425-006-2013-5
发表时间:
2006-10
期刊:
Science in China Series A: Mathematics
影响因子:
--
作者:
L. Ji
通讯作者:
L. Ji
DOI:
10.4153/cjm-1963-069-5
发表时间:
1963
期刊:
Canadian Journal of Mathematics
影响因子:
--
作者:
H. Hanani
通讯作者:
H. Hanani
DOI:
10.1016/0097-3165(79)90050-5
发表时间:
1979
期刊:
J. Comb. Theory A
影响因子:
--
作者:
H. Hanani
通讯作者:
H. Hanani
DOI:
10.1016/j.disc.2007.04.033
发表时间:
2008-05
期刊:
Discret. Math.
影响因子:
--
作者:
Junling Zhou;Yanxun Chang;L. Ji
通讯作者:
Junling Zhou;Yanxun Chang;L. Ji
影响因子:
0.9
作者:
Hedvig Mohácsy;D. K. Ray-Chaudhuri
通讯作者:
Hedvig Mohácsy;D. K. Ray-Chaudhuri