Killing forms on G2- and Spin7-manifolds

被引:14
|
作者
Semmelmann, Uwe [1 ]
机构
[1] Univ Hamburg, Fachbereich Math, D-20146 Hamburg, Germany
关键词
special holonomy manifolds; killing forms;
D O I
10.1016/j.geomphys.2005.10.003
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Killing forms on Riemannian manifolds are differential forms whose covariant derivative is totally skew-symmetric. We prove that on a compact manifold with holonomy G(2) or Spin(7) any Killing form has to be parallel. The main tool is a universal Weitzenbock formula. We show, how such a formula can be obtained for any given holonomy group and any representation defining a vector bundle. (c) 2005 Published by Elsevier B.V.
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页码:1752 / 1766
页数:15
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