English

Simple homotopy types of independence complexes of graphs involving grid graphs

Algebraic Topology 2019-08-27 v1 Combinatorics

Abstract

We show that if a graph GG involves a certain square grid graph as a full subgraph, then a certain operation on it yields a simplicial suspension of the independence complex of GG. This generalizes a result of Csorba. As a corollary, we determine the simple homotopy types of the independence complexes of some grid graphs.

Keywords

Cite

@article{arxiv.1908.09356,
  title  = {Simple homotopy types of independence complexes of graphs involving grid graphs},
  author = {Kengo Okura},
  journal= {arXiv preprint arXiv:1908.09356},
  year   = {2019}
}