English

Lectures on the triangulation conjecture

Geometric Topology 2024-02-21 v3

Abstract

We outline the proof that non-triangulable manifolds exist in any dimension greater than four. The arguments involve homology cobordism invariants coming from the Pin(2) symmetry of the Seiberg-Witten equations. We also explore a related construction, of an involutive version of Heegaard Floer homology.

Keywords

Cite

@article{arxiv.1607.08163,
  title  = {Lectures on the triangulation conjecture},
  author = {Ciprian Manolescu},
  journal= {arXiv preprint arXiv:1607.08163},
  year   = {2024}
}

Comments

33 pages. Notes prepared with the help of Eylem Zeliha Yildiz; in Proceedings of the 22nd Gokova Geometry/Topology Conference. The arxiv version has two corrected statements on p.4

R2 v1 2026-06-22T15:05:48.152Z