新疆大学数学与系统科学学院
纸质出版:2012
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[1]梁晓东,孟吉翔,张昭.一致最优完全多部图(英文)[J].新疆大学学报(自然科学版),2012,29(01):1-8.
梁晓东, 孟吉翔, 张昭. 一致最优完全多部图(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2012, 29(1): 1-8.
假设图G的边可靠
而顶点可靠的独立概率为p
以(n
m)表示具有n个顶点m条边的图的集合.若对于所有1 p∈(0
1)
图G均为(n
m)中的最可靠图
则称G为一致最优图.本文证明了完全k部图K(b
(b+1)k h 1
(b+2)h)在其图类中是一致最优的
而当i≥3时
完全k部图K(b
(b+1)k h 2
(b+2)h
b+i)在其图类中不是一致最优的.
For a graph G
suppose that edges never fail and vertices operate independently of each other with a constant probability p.Denote by(n
m) the set of graphs with n vertices and m edges.The graph G is called uniformly optimal in(n
m) if
for all vertex-failure probabilities 1 p ∈(0
1)
the graph G is the most reliable graph.This paper proves that the complete k-partite graphs K(b
(b+1) k h 1
(b+2) h) are uniformly optimal in their classes
while for i ≥ 3
the complete k-partite graphs K(b
(b + 1) k h 2
(b + 2) h
b + i) are not uniformly optimal in their classes.
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