English

Special Hermitian structures on suspensions

Differential Geometry 2025-09-18 v3

Abstract

Motivated by the construction based on topological suspension of a family of compact non-K\"ahler complex manifolds with trivial canonical bundle given by L. Qin and B. Wang in [QW], we study toric suspensions of balanced manifolds by holomorphic automorphisms. In particular, we show that toric suspensions of Calabi-Yau manifolds are balanced. We also prove that suspensions associated with hyperbolic automorphisms of hyperk\"ahler manifolds do not admit any pluriclosed, astheno-K\"ahler or p-pluriclosed Hermitian metric. Moreover, we consider natural extensions for hypercomplex manifolds, providing some explicit examples of compact holomorphic symplectic and hypercomplex non-K\"ahler manifolds. We also show that a modified suspension construction provides examples with pluriclosed metrics.

Keywords

Cite

@article{arxiv.2208.12168,
  title  = {Special Hermitian structures on suspensions},
  author = {Anna Fino and Gueo Grantcharov and Misha Verbitsky},
  journal= {arXiv preprint arXiv:2208.12168},
  year   = {2025}
}

Comments

Final Version. To appear in Mathematische Annalen

R2 v1 2026-06-25T01:58:45.572Z