English

Moment angle complexes and duality for tight manifolds

Algebraic Topology 2026-04-21 v1

Abstract

For a field F\mathbb{F} and a triangulated compact F\mathbb{F}-orientable manifold, consider the homology of the associated Moment-Angle ccomplex H(ZK)H_*(\mathcal{Z}_{\mathcal{K}}). We show the total homology rank β(ZK)\beta(\mathcal{Z}_{\mathcal{K}}) satisfies the inequality β(ZK;F)2m1(β(K;F)2)+2\beta(\mathcal{Z}_{\mathcal{K}};\mathbb{F})\geq 2^{m-1}(\beta(\mathcal{K};\mathbb{F})-2)+2, with equality occurring exactly when the triangulation is F\mathbb{F}-tight. Using Lefschetz duality, we introduce a short exact sequence of functors that, in turn, introduces a new duality theorem in Double Homology for tight manifold triangulations.

Keywords

Cite

@article{arxiv.2604.16739,
  title  = {Moment angle complexes and duality for tight manifolds},
  author = {Daisuke Kishimoto and Donald Stanley and Carlos Gabriel Valenzuela Ruiz},
  journal= {arXiv preprint arXiv:2604.16739},
  year   = {2026}
}
R2 v1 2026-07-01T12:15:33.851Z