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Property Testing on k-Vertex-Connectivity of Graphs

机译:图形k-顶点连接性的财产测试

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We present an algorithm for testing the k-vertex-connectivity of graphs with given maximum degree. The time complexity of the algorithm is independent of the number of vertices and edges of graphs. A graph G with n vertices and maximum degree at most d is calledε-far from k-vertex-connectivity when at least εdn/2 edges must be added to or removed from G to obtain a k-vertex-connected graph with maximum degree at most d. The algorithm always accepts every graph that is k-vertex-connected and rejects every graph that is ε-far from k-vertex-connectivity with a probability of at least 2/3. The algorithm runs in O(d(c/εd){sup}k log 1/εd) time (c>1 is a constant) for given (k-1)-vertex-connected graphs, and O(d(ck/εd){sup}k log k/εd ) time (c>1 is a constant) for given general graphs. It is the first constant-time k-vertex-connectivity testing algorithm for general k≥4.
机译:我们介绍了一种用于测试具有给定最大程度的k-顶点连接的算法。算法的时间复杂性与图形的顶点和边缘的数量无关。当必须将至少εdn/ 2边缘加入或从g中移除时,具有n顶点和最多d最多d的图形g远离k - 顶点连接,以获得最大程度的k角连接图大多数d。该算法总是接受每个k角连接的图表,并拒绝ε-远离k角连接的图表,概率至少为2/3。该算法在O(d(c /εd){sup} k log 1 /εd)中运行(c> 1是常数)给定(k-1) - 连接图和o(d(ck /对于给定的一般图,εd){sup} k log k /εd)时间(c> 1是常数)。它是一般k≥4的第一恒定时间k角连接测试算法。

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