English

Hard Lefschetz Condition on symplectic non-K\"ahler solvmanifolds

Differential Geometry 2025-09-26 v2

Abstract

We provide new families of compact complex manifolds with no K\"ahler structure carrying symplectic structures satisfying the \textit{Hard Lefschetz Condition}. These examples are obtained as compact quotients of the solvable Lie group C2nρC2m\mathbb{C}^{2n} \ltimes_{\rho} \mathbb{C}^{2m}, for which we construct explicit lattices. By cohomological computations we prove that such manifolds carry symplectic structures satisfying the \textit{Hard Lefschetz Condition}. Furthermore, we compute the Kodaira dimension of an almost-K\"ahler structure and generators for the de Rham and Dolbeault cohomologies.

Keywords

Cite

@article{arxiv.2501.13179,
  title  = {Hard Lefschetz Condition on symplectic non-K\"ahler solvmanifolds},
  author = {Francesca Lusetti and Adriano Tomassini},
  journal= {arXiv preprint arXiv:2501.13179},
  year   = {2025}
}