Induced paths in strongly regular graphs

Autor: Bailey, Robert F., Rowsell, Abigail K.
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: This paper studies induced paths in strongly regular graphs. We give an elementary proof that a strongly regular graph contains a path $P_4$ as an induced subgraph if and only if it is primitive, i.e. it is neither a complete multipartite graph nor its complement. Also, we investigate when a strongly regular graph has an induced subgraph isomorphic to $P_5$ or its complement, considering several well-known families including Johnson and Kneser graphs, Hamming graphs, Latin square graphs, and block-intersection graphs of Steiner triple systems.
Comment: 10 pages
Databáze: arXiv