On the geometry of graphs with a forbidden minor

On the geometry of graphs with a forbidden minor
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关于带有禁止次要图的几何

DOI:
10.1145/1536414.1536450
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发表时间:
2009
期刊:
European Biophysics Journal
影响因子:
--
通讯作者:
Anastasios Sidiropoulos
Anastasios Sidiropoulos
中科院分区:
--
文献类型:
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作者:
James R. Lee;Anastasios Sidiropoulos

文献摘要

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我们研究了通过随机嵌入图的拓扑简化,最终导致减少Gupta-Newman-Rabinovich-Sinclair(GNRS)L1嵌入猜想到一对明显更简单的映射。GNRS猜想刻画了所有具有O(1)-近似多商品最大流/最小割定理的图。特别是,它的决议将意味着一个常数因子近似的一般Sparling-Cut问题,在每一个家庭的图,其中禁止一些小的。在我们的研究过程中,我们证明了一些结果的独立利益。
We study the topological simplification of graphs via random embeddings, leading ultimately to a reduction of the Gupta-Newman-Rabinovich-Sinclair (GNRS) L1 embedding conjecture to a pair of manifestly simpler conjectures. The GNRS conjecture characterizes all graphs that have an O(1)-approximate multi-commodity max-flow/min-cut theorem. In particular, its resolution would imply a constant factor approximation for the general Sparsest Cut problem in every family of graphs which forbids some minor. In the course of our study, we prove a number of results of independent interest.