Conification construction for Kähler manifolds and its application in c-projective geometry
Conification construction for Kähler manifolds and its application in c-projective geometry
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Kähler流形的锥化构造及其在c射影几何中的应用
DOI:
10.1016/j.aim.2015.01.006
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发表时间:
2015
影响因子:
1.7
通讯作者:
S. Rosemann
中科院分区:
文献类型:
--
作者:
V. Matveev;S. Rosemann
Two Kähler metrics on a complex manifold are called c-projectively equivalent if their J-planar curves coincide. Such curves are defined by the property that the acceleration is complex proportional to the velocity. The degree of mobility of a Kähler metric is the dimension of the space of metrics that are c-projectively equivalent to it. We give the list of all possible values of the degree of mobility of a simply connected Kähler manifold by reducing the problem to the study of parallel Hermitian (0, 2)-tensors on the conification of the manifold. We also describe all such values for a Kähler–Einstein metric. We apply these results to describe all possible dimensions of the space of essential c-projective vector fields of Kähler and Kähler–Einstein metrics. We also show that two c-projectively equivalent Kähler–Einstein metrics (of arbitrary signature) on a closed manifold have constant holomorphic curvature or are affinely equivalent.
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DOI:
--
发表时间:
--
期刊:
Proc. AMS (to appear)
影响因子:
--
作者:
K. Kiyohara;P. Topalov
通讯作者:
P. Topalov
影响因子:
0.7
作者:
V. Apostolov;D. Calderbank;P. Gauduchon;Christina W. Tønnesen-Friedman
通讯作者:
V. Apostolov;D. Calderbank;P. Gauduchon;Christina W. Tønnesen-Friedman
影响因子:
1.8
作者:
A. Fedorova;V. Kiosak;V. Matveev;S. Rosemann
通讯作者:
S. Rosemann
影响因子:
1.9
作者:
K. Kiyohara
通讯作者:
K. Kiyohara
DOI:
10.1007/bf01153160
发表时间:
1978
期刊:
Mathematical notes of the Academy of Sciences of the USSR
影响因子:
--
作者:
V. V. Domashev;I. Mikesh
通讯作者:
I. Mikesh