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Some Remarks on Sparsely Connected Isomorphism-Free Labeled Graphs

机译:关于稀疏连接的无同构标记图的一些说明

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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:给定连接的非非循环图的集合zeta =(H_1,H_2,-),无zeta图是不包含任何zeta成员作为诱导子图的图。本文的第一个目的是对带n个顶点和大约1 / 2n个边的带标签图和多图(具有可能的自环和多个边的图)的极限分布进行研究,其中所有稀疏连接的分量均为zeta -自由。接下来,我们证明对于多环图的任何有限集合zeta,几乎所有具有n个顶点和n + o(n〜1/3)边的连通图都是无zeta的。同样的结果适用于多图。

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