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Download fileFour-dimensional Kähler metrics admitting c-projective vector fields
journal contribution
posted on 2015-06-16, 13:01 authored by Alexey BolsinovAlexey Bolsinov, Vladimir S. Matveev, Thomas Mettler, Steffan RosemannA vector field on a Kähler manifold is called c-projective if its flow preserves the J-planar curves. We give a complete local classification of Kähler real 4-dimensional manifolds that admit an essential c-projective vector field. An important technical step is a local description of 4-dimensional c-projectively equivalent metrics of arbitrary signature. As an application of our results we prove the natural analog of the classical Yano-Obata conjecture in the pseudo-Riemannian 4-dimensional case.
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