The proof of a conjecture due to Snevily
The proof of a conjecture due to Snevily
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Snevilly猜想的证明
DOI:
10.1016/j.disc.2010.02.008
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发表时间:
2010-06
影响因子:
0.8
通讯作者:
高泽图
中科院分区:
文献类型:
--
作者:
尹建华;高泽图
Given a distribution of pebbles on the vertices of a connected graph G, a pebbling move on G consists of taking two pebbles off one vertex and placing one on an adjacent vertex. The pebbling numberf(G) is the smallest number m such that, for every distribution of m pebbles and every vertex v, a pebble can be moved to v. A graph G is said to have the2-pebbling property if, for any distribution with more than 2f(G)−q pebbles, where q is the number of vertices with at least one pebble, it is possible, using pebbling moves, to get two pebbles to any vertex. A graph G without the 2-pebbling property is called a Lemke graph. Snevily and Foster [H.S. Snevily, J.A. Foster, The 2-pebbling property and a conjecture of Graham’s, Graphs and Combin. 16 (2000), 231–244] defined an infinite family {L1,L2,…} of possible Lemke graphs, and conjectured that Lkis a Lemke graph for each k. In this paper, we prove this conjecture.
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影响因子:
0.9
作者:
David P. Bunde;E. Chambers;D. Cranston;K. Milans;D. West
通讯作者:
David P. Bunde;E. Chambers;D. Cranston;K. Milans;D. West
DOI:
10.1016/s0012-365x(00)00177-1
发表时间:
2001
期刊:
Discret. Math.
影响因子:
--
作者:
Stephen S. Wang
通讯作者:
Stephen S. Wang
影响因子:
0.8
作者:
F. Chung
通讯作者:
F. Chung
DOI:
--
发表时间:
2005-09
期刊:
arXiv: Combinatorics
影响因子:
--
作者:
G. Hurlbert
通讯作者:
G. Hurlbert
DOI:
10.1016/s0012-365x(97)00229-x
发表时间:
1998-06
期刊:
Discret. Math.
影响因子:
--
作者:
D. S. Herscovici;Aparna W. Higgins
通讯作者:
D. S. Herscovici;Aparna W. Higgins