Moore Graphs and Beyond: A survey of the Degree/Diameter Problem

By Mirka Miller, Jozef Sirán. 2013

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The degree/diameter problem is to determine the largest graphs or digraphs of given maximum degree and given diameter. General upper bounds - called Moore bounds - for the order of such graphs and digraphs are attainable only for certain special graphs and digraphs. Finding better (tighter) upper bounds for the maximum possible number of vertices, given the other two parameters, and thus attacking the degree/diameter problem 'from above', remains a largely unexplored area. Constructions producing large graphs and digraphs of given degree and diameter represent a way of attacking the degree/diameter problem 'from below'. This survey aims to give an overview of the current state-of-the-art of the degree/diameter problem. We focus mainly on the above two streams of research. However, we could not resist mentioning also results on various related problems. These include considering Moore-like bounds for special types of graphs and digraphs, such as vertex-transitive, Cayley, planar, bipartite, and many others, on the one hand, and related properties such as connectivity, regularity, and surface embeddability, on the other hand.

Subfields: Computational Theory and Mathematics, Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/2dd8c1b9473bfe7a4a23902b78669d6a762f928c

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In Computational Theory and Mathematics

  1. Torsten Hoefler
  2. Maciej Besta

In Computer Networks and Communications

  1. Torsten Hoefler
  2. Maciej Besta

In Electrical and Electronic Engineering

  1. Torsten Hoefler
  2. Maciej Besta

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