Recolouring weakly chordal graphs and the complement of triangle-free graphs

نویسندگان

چکیده

For a graph G, the k-recolouring Rk(G) is whose vertices are k-colourings of G and two colourings joined by an edge if they differ in colour on exactly one vertex. We prove that for all n≥1, there exists k-colourable weakly chordal where Rk+n(G) disconnected, answering open question Feghali Fiala. also show every 3K1-free Rk+1(G) connected with diameter at most 4|V(G)|.

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ژورنال

عنوان ژورنال: Discrete Mathematics

سال: 2022

ISSN: ['1872-681X', '0012-365X']

DOI: https://doi.org/10.1016/j.disc.2021.112708