University of IsfahanTransactions on Combinatorics2251-865711320220901A directed graph associated with a $T_0$-quasi-metric space2372542632010.22108/toc.2022.129171.1864ENHans-Peter A.KünziThe Department of Mathematics and Applied Mathematics ,
University of Cape Town - South AfricaFilizYıldızDepartment of Mathematics, Faculty of Science, Hacettepe University, Beytepe -AnkaraJournal Article20210624Given a $T_0$-quasi-metric space we associate a directed graph with it and study some properties of the related directed graph. The present work complements and refines earlier work in the field in which the symmetry graph of a $T_0$-quasi-metric space was studied.https://toc.ui.ac.ir/article_26320_9921472db3c7a6dcc9a0c7d3b748d8f3.pdf