# Talk:Distance (graph theory)

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Field:  Discrete mathematics

what happens to diameter if the graph is not connected?

## pseudo-peripheral vertices in directed graphs ?

Does the given "Algorithm for finding pseudo-peripheral vertices" work also in directed graphs? If yes, do I need to use indegree or outdegree? If not, it should be mentioned that the algorithm is only for undirected graphs. 80.248.242.52 18:14, 26 December 2006 (UTC)

## asymptotics?

How do we know that peripheral vertices are hard to find? What is the asymptotic running time for the best algorithm to find a peripheral vertex? What is the asymptotic running time for the pseudo-peripheral vertex finding algorithm described in the text? 89.132.107.235 (talk) 20:52, 26 February 2008 (UTC)

## Name

Why does the article use the term "geodetic distance"? The usual name is simply "distance". Zaslav (talk) 02:24, 27 October 2015 (UTC)

Graph theorists say "distance" but people from other parts of mathematics or physics, etc., sometime use "geodesic distance" or geodetic distance". It seems reasonable to mention it. McKay (talk) 03:02, 29 October 2015 (UTC)