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Supereulerian digraphs
被引:16
作者:
Hong, Yanmei
[1
]
Lai, Hong-Jian
[2
]
Liu, Qinghai
[3
]
机构:
[1] Fuzhou Univ, Coll Math & Comp Sci, Fuzhou 350108, Peoples R China
[2] W Virginia Univ, Dept Math, Morgantown, WV 26506 USA
[3] Fuzhou Univ, Ctr Discrete Math, Fuzhou 350002, Fujian, Peoples R China
关键词:
Supereulerian;
GRAPHS;
D O I:
10.1016/j.disc.2014.04.018
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
A digraph D is supereulerian if D has a spanning directed eulerian subdigraph. We give a necessary condition for a digraph to be supereulerian first and then characterize the digraph D which are not supereulerian under the condition that delta(+) (D)+ delta(-) (D) >= [V (D)] -4. (C) 2014 Elsevier B.V. All rights reserved.
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页码:87 / 95
页数:9
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