山东科学
山東科學
산동과학
SHANDONG SCIENCE
2012年
2期
1-7
,共7页
二部有向图%最小度%领域条件%极大局部边连通性%超级局部边连通性
二部有嚮圖%最小度%領域條件%極大跼部邊連通性%超級跼部邊連通性
이부유향도%최소도%영역조건%겁대국부변련통성%초급국부변련통성
bipartite digraph%neighborhood condition%minimum degree%maximal local-edge-connectivity%super-localedge-connectivity
本文主要证明了对于n阶二部有向图D,当最小度δ≥3,对任意同部顶点x,y,有min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}≥n+3/4时,D为极大局部边连通的,当最小度δ≥4,对任意同部顶点x,y,有min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}〉n/4+1时,D为超级局部边连通的。我们证明了条件的最好可能性及结果与原有结果的独立性。
本文主要證明瞭對于n階二部有嚮圖D,噹最小度δ≥3,對任意同部頂點x,y,有min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}≥n+3/4時,D為極大跼部邊連通的,噹最小度δ≥4,對任意同部頂點x,y,有min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}〉n/4+1時,D為超級跼部邊連通的。我們證明瞭條件的最好可能性及結果與原有結果的獨立性。
본문주요증명료대우n계이부유향도D,당최소도δ≥3,대임의동부정점x,y,유min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}≥n+3/4시,D위겁대국부변련통적,당최소도δ≥4,대임의동부정점x,y,유min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}〉n/4+1시,D위초급국부변련통적。아문증명료조건적최호가능성급결과여원유결과적독립성。
We prove that a n-order bipartite digraph D is maximally local-edge-connected if the minimum degree δ≥3 and min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}≥n+3/4for each pair of vertices x and y in the same part, and is super-edge-connected ifδ≥4 and min{|N+(x)UN+(y)|,|N-(x)UN-(y)|}〉n/4+1for each pair of vertices x and y in the samepart. We also prove that the best possibility of the conditions and the independence of the results from the primitive ones.