Line graphs of directed graphs I

Document Type : Research Paper


1 Department of Mathematics and Statistics, Mississippi State University Mississippi State, MS 39762, USA

2 Department of Mathematics and Statistics, Wright State University Dayton, OH 45435, USA



We determine the forbidden induced subgraphs for the intersection of the classes of chordal bipartite graphs and line graphs of acyclic directed graphs. This is a first step towards finding the forbidden induced subgraphs for the class of line graphs of directed graphs.


Main Subjects

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Articles in Press, Corrected Proof
Available Online from 20 January 2024
  • Receive Date: 28 March 2023
  • Revise Date: 23 December 2023
  • Accept Date: 27 December 2023
  • Published Online: 20 January 2024