"On a Conjecture of Murty and Simon on Diameter Two Critical Graphs II" by Teresa W. Haynes, Michael A. Henning et al.
 

On a Conjecture of Murty and Simon on Diameter Two Critical Graphs II

Document Type

Article

Publication Date

1-28-2012

Description

A graph G is diameter 2-critical if its diameter is two and the deletion of any edge increases the diameter. Murty and Simon conjectured that the number of edges in a diameter 2-critical graph of order n is at most n2/4 and that the extremal graphs are complete bipartite graphs with equal size partite sets. We use an important association with total domination to prove the conjecture for the graphs whose complements have vertex connectivity k for k∈1,2,3.

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