Universal lines in graphs

Published in: Quaestiones Mathematicae
Volume 45 , issue 10 , 2022 , pages: 1485–1500

DOI: 10.2989/16073606.2021.1950862

Author(s): Juan Alberto Rodríguez-Velázquez Universitat Rovira i Virgili, Spain

Keywords: 30L99 , 05C12 , 05C76 , Lines in graphs , universal lines , distance in graph , product graphs , metric spaces

In a metric space M = (X, d), a line induced by two distinct points x, x′ ∈ X, denoted by , is the set of points given by

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