Six‐dimensional complex solvmanifolds with non‐invariant trivializing sections of their canonical bundle

Alejandro Tolcachier

Mathematische Nachrichten, 2025, vol. 298, issue 8, 2626-2651

Abstract: It is known that there exist complex solvmanifolds (Γ∖G,J)$(\Gamma \backslash G,J)$ whose canonical bundle is trivialized by a holomorphic section that is not invariant under the action of G$G$. The main goal of this paper is to classify the six‐dimensional Lie algebras corresponding to such complex solvmanifolds, thus extending the previous work of Fino, Otal, and Ugarte for the invariant case. To achieve this, we complete the classification of six‐dimensional solvable strongly unimodular Lie algebras admitting complex structures and identify among them, the ones admitting complex structures with Chern–Ricci flat metrics. Finally, we construct complex solvmanifolds with non‐invariant holomorphic sections of their canonical bundle. In particular, we present an example of one such solvmanifold that is not biholomorphic to a complex solvmanifold with an invariant holomorphic section of its canonical bundle. Additionally, we discover a new six‐dimensional solvable strongly unimodular Lie algebra equipped with a complex structure that has a nonzero holomorphic (3,0)‐form.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:bla:mathna:v:298:y:2025:i:8:p:2626-2651

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