Discrete MathematicsVolume 64, Issue 1, March 1987, Pages 97-98NoteOn the null-homotopy of graphsAuthor links open overlay panelChristophe ChampetierShow moreShareCitehttps://doi.org/10.1016/0012-365X(87)90244-5Get rights and contentUnder an Elsevier user licenseopen archiveAbstractIn this note, we answer a problem of P. Duchet, M. Las Vergnas and H. Meyniel by giving an example of null-homotopic graph in which the deletion of no edge preserves the null-homotopy.Previous article in issueNext article in issueRecommended articlesCited by (0)Copyright © 1987 Published by Elsevier B.V.
