English

The homotopy classification of four-dimensional toric orbifolds

Algebraic Topology 2021-07-01 v2

Abstract

Let XX be a 44-dimensional toric orbifold. If H3(X)H^3(X) has a non-trivial odd primary torsion, then we show that XX is homotopy equivalent to the wedge of a Moore space and a CW-complex. As a corollary, given two 4-dimensional toric orbifolds having no 2-torsion in the cohomology, we prove that they have the same homotopy type if and only their integral cohomology rings are isomorphic.

Keywords

Cite

@article{arxiv.2011.13537,
  title  = {The homotopy classification of four-dimensional toric orbifolds},
  author = {Xin Fu and Tseleung So and Jongbaek Song},
  journal= {arXiv preprint arXiv:2011.13537},
  year   = {2021}
}

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20 pages