English

Token Jumping in minor-closed classes

Computational Complexity 2017-06-30 v1 Discrete Mathematics

Abstract

Given two kk-independent sets II and JJ of a graph GG, one can ask if it is possible to transform the one into the other in such a way that, at any step, we replace one vertex of the current independent set by another while keeping the property of being independent. Deciding this problem, known as the Token Jumping (TJ) reconfiguration problem, is PSPACE-complete even on planar graphs. Ito et al. proved in 2014 that the problem is FPT parameterized by kk if the input graph is K3,K_{3,\ell}-free. We prove that the result of Ito et al. can be extended to any K,K_{\ell,\ell}-free graphs. In other words, if GG is a K,K_{\ell,\ell}-free graph, then it is possible to decide in FPT-time if II can be transformed into JJ. As a by product, the TJ-reconfiguration problem is FPT in many well-known classes of graphs such as any minor-free class.

Keywords

Cite

@article{arxiv.1706.09608,
  title  = {Token Jumping in minor-closed classes},
  author = {Nicolas Bousquet and Arnaud Mary and Aline Parreau},
  journal= {arXiv preprint arXiv:1706.09608},
  year   = {2017}
}
R2 v1 2026-06-22T20:33:01.767Z