Journal article

A Note On The Triameter Of Graphs

Year:

2022

Published in:

Discrete Applied Mathematics
triameter
diameter
trees
block graphs

In this article, we answer three questions from the paper (Das, 2021). We observe a tight lower bound for the triameter of trees in terms of order and number of leaves. We show that in a connected block graph any triametral triple of vertices contains a diametral pair and that any diametral pair of vertices can be extended to a triametral triple. We also present several open problems concerning the interplay between triametral triples, diametral pairs and peripheral vertices in median and distance-hereditary graphs.

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