Holomorphic harmonic morphisms from four-dimensional non-Einstein manifolds
Författare
Summary, in English
We construct 4-dimensional Riemannian Lie groups carrying left-invariant conformal foliations with minimal leaves of codimension 2. We show that these foliations are holomorphic with respect to an (integrable) Hermitian structure which is not Kähler. We then prove that the Riemannian Lie groups constructed are not Einstein manifolds. This answers an important open question in the theory of complex-valued harmonic morphisms from Riemannian 4-manifolds.
Avdelning/ar
- Matematik (naturvetenskapliga fakulteten)
- Differential Geometry
Publiceringsår
2015
Språk
Engelska
Publikation/Tidskrift/Serie
International Journal of Mathematics
Volym
26
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
World Scientific Publishing
Ämne
- Geometry
Nyckelord
- harmonic morphisms
- holomorphic foliations
- Einstein manifolds
Status
Published
Forskningsgrupp
- Differential Geometry
ISBN/ISSN/Övrigt
- ISSN: 0129-167X