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Some Remarks on Sparsely Connected Isomorphism-Free Labeled Graphs

机译:关于无稀疏连接的同构图标记图的一些评论

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Given set zeta = (H_1, H_2, ---) of connected non-acyclic graphs, a zeta-free graph is one which does not ocntain any member of zeta as induced subgraphs. Our first purpose in this paper is to perform an investigation into the limiting distribution of labeled graphs and multigraphs (graphs with possible self-loops nd multiple edges), with n vertices and approximately 1/2n edges, in which all sparse connected components are zeta-free. Next, we prove that for any finite collection zeta of multicyclic graphs almost all connected graphs with n vertices and n + o(n~1/3) edges are zeta-free. The same result holds for multigraphs.
机译:给定的Zeta =(H_1,H_2,---)连接的非联循环图,无Zeta-Free图是不作为诱导的子图的任何Zeta的任何成员突出的图。我们本文的第一个目的是对标记图和多层的限制分布进行调查(具有可能的自循环ND多边的图表),其中n个顶点和大约1/2n边缘,其中所有稀疏连接的组件都是zeta -自由。接下来,我们证明,对于多环图的任何有限收集Zeta,几乎所有连接的图形都有n顶点和n + o(n〜1/3)边缘是无ζ的。相同的结果适用于多层物。

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