Mathematics – Differential Geometry
Scientific paper
2005-10-21
Journal of Geometry and Physics, 57 (2007), 2, 617- 640
Mathematics
Differential Geometry
27 pages (Final version, to appear in Journal of Geometry and Physics)
Scientific paper
We prove that every Kaehler metric, whose potential is a function of the time-like distance in the flat Kaehler-Lorentz space, is of quasi-constant holomorphic sectional curvatures, satisfying certain conditions. This gives a local classification of the Kaehler manifolds with the above mentioned metrics. New examples of Sasakian space forms are obtained as real hypersurfaces of a Kaehler space form with special invariant distribution. We introduce three types of even dimensional rotational hypersurfaces in flat spaces and endow them with locally conformal Kaehler structures. We prove that these rotational hypersurfaces carry Kaehler metrics of quasi-constant holomorphic sectional curvatures satisfying some conditions, corresponding to the type of the hypersurfaces. The meridians of those rotational hypersurfaces, whose Kaehler metrics are Bochner-Kaehler (especially of constant holomorphic sectional curvatures) are also described.
Ganchev Georgi
Mihova Vesselka
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