Program PN-III, Project number PN-III-P4-ID-PCE-2020-0025, Contract number 30/04.02.2021

Financed by Romanian Ministry of Education and Research, CNCS - UEFISCDI

Project Executive Summary

Locally conformally Kähler (LCK) manifolds are complex manifolds of complex dimension at least two admitting a Kähler covering with deck transformations acting by holomorphic homotheties with respect to the Kähler metric. They belong to complex differential geometry and can be treated using methods pertaining to complex geometry, Riemannian and conformal geometry, algebraic geometry and topology. The very need of combining all these methods constitutes an intrinsic difficulty of the subject. Our project concerns complex and Riemannian properties of LCK manifolds. In complex geometry, we intend to: count the elliptic curves on compact Vaisman manifolds; study the analytic invariants of the recently found new class of LCK manifolds with global spherical shell (which are not Vaisman); determine the properties of holomorphic submersions between LCK manifolds, aiming to prove the non-existence of LCK products; determine the subspace of Lee forms in the 1-cohomology of a given compact LCK manifold; classify 3-dimensional LCK manifolds according to their algebraic dimension; extend the theory to singular analytic spaces; study the possibility of coexistence of an LCK metric with other non-Kähler metrics (e.g. balanced, astheno-Kähler etc.) on LCK manifolds, in particular on solvmanifolds; study the existence problem of LCK metrics on Oeljeklaus-Toma (OT) manifolds. In Riemannian geometry, we shall concentrate on variational properties (harmonic maps and morphism, Yang-Mills fields and generalizations) and deformations of the canonical foliation of Vaisman manifolds. Our methods will combine real and complex differential geometry techniques with algebraic geometry techniques and, for OT manifolds, number theoretic ones.

Research team:

  • Liviu Ornea (Project Leader)
  • Monica Aprodu (Experienced Researcher)
  • Cristian Ciulicã (Master Student)
  • Sorin Dăscălescu (Experienced Researcher)
  • Ştefan Deaconu (PhD Student)
  • Cãtãlin Gherghe (Experienced Researcher)
  • Adrian Vlad Marchidanu (Master Student)
  • Alexandra Otiman (Postdoctoral researcher)
  • Vladimir Slesar (Experienced Researcher)
  • Miron Stanciu (Postdoctoral researcher)
  • Gabriel-Eduard Vîlcu (Experienced Researcher)
  • Victor-Corneliu Vuletescu (Experienced Researcher)

  • Budget

    Financial and Scientific Reports

    2021:- Unique phase
    - Post-calculation assessment
    - Scientific report

    Research funded by this grant:

    A. Articles published in ISI ranked journals

    A1. L. Ornea, M. Verbitsky, Closed orbits of Reeb fields on Sasakian manifolds and elliptic curves on Vaisman manifolds, Mathematische Zeitschrift (2021).

    B. Papers submitted and preprints

    B1. ,

    C. Chapters in books published in foreign editorial houses

    C1. ,

    Last update: 18-May-2021