English

Every finite complex has the homology of some CAT(0) cubical duality group

Metric Geometry 2012-12-11 v2 Geometric Topology

Abstract

We prove that every finite connected simplicial complex has the homology of the classifying space for some CAT(0)\mathrm{CAT}(0) cubical duality group. More specifically, for any finite simplicial complex XX, we construct a locally CAT(0)\mathrm{CAT}(0) cubical complex TXT_{X} and an acyclic map tX:TXXt_{X} : T_{X} \to X such that π1(TX)\pi_1(T_X) is a duality group.

Keywords

Cite

@article{arxiv.1202.1872,
  title  = {Every finite complex has the homology of some CAT(0) cubical duality group},
  author = {Raeyong Kim},
  journal= {arXiv preprint arXiv:1202.1872},
  year   = {2012}
}

Comments

11 pages, 3 figures